{"id":16505,"date":"2021-03-15T20:00:18","date_gmt":"2021-03-15T16:30:18","guid":{"rendered":"https:\/\/avalpardakht.com\/blog\/?p=16505"},"modified":"2021-03-15T18:00:04","modified_gmt":"2021-03-15T14:30:04","slug":"create-an-erc20-token","status":"publish","type":"post","link":"https:\/\/avalpardakht.com\/blog\/create-an-erc20-token\/","title":{"rendered":"\u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0627\u062a\u0631\u06cc\u0648\u0645"},"content":{"rendered":"<p style=\"text-align: justify;\">\u062f\u0631 \u0633\u0627\u0644\u200c\u0647\u0627\u06cc \u0627\u062e\u06cc\u0631\u060c \u0645\u0634\u062e\u0635\u0627\u062a \u0631\u0645\u0632 ERC20 \u0628\u0647 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u062f\u0641\u0627\u0639\u06cc \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc Ethereum \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0628\u0647 \u0639\u0628\u0627\u0631\u062a \u062f\u06cc\u06af\u0631\u060c \u0628\u06cc\u0634\u200c\u062a\u0631 \u0642\u0631\u0627\u0631\u062f\u0627\u062f\u200c\u0647\u0627\u06cc Ethereum \u0633\u0627\u0632\u06af\u0627\u0631 \u0628\u0627 ERC20 \u0647\u0633\u062a\u0646\u062f. \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0637\u0648\u0631 \u062f\u0642\u06cc\u0642 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0627\u062a\u0631\u06cc\u0648\u0645 \u0631\u0627 \u062a\u0648\u0636\u06cc\u062d \u0645\u06cc\u200c\u062f\u0647\u062f\u060c \u0627\u0645\u0627 \u0642\u0628\u0644 \u0627\u0632 \u0634\u0631\u0648\u0639 \u06a9\u0627\u0631\u060c \u0646\u06af\u0627\u0647\u06cc \u062f\u0642\u06cc\u0642\u200c\u062a\u0631 \u0628\u0647 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f ERC20 \u0645\u06cc\u200c\u0627\u0646\u062f\u0627\u0632\u06cc\u0645.<\/p>\n<h2>\u0686\u0647 \u0639\u0627\u0645\u0644\u06cc \u0628\u0627\u0639\u062b \u062c\u0630\u0627\u0628\u06cc\u062a \u0648 \u0645\u0648\u0641\u0642\u06cc\u062a \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ERC20 \u0645\u06cc\u200c\u0634\u0648\u062f\u061f<\/h2>\n<p style=\"text-align: justify;\">\u0639\u0648\u0627\u0645\u0644 \u0645\u062e\u062a\u0644\u0641\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0622\u0645\u0648\u0632\u0634\u06cc \u0645\u0634\u0627\u0647\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f\u060c \u0627\u06cc\u062c\u0627\u062f \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ERC20 \u0633\u0627\u062f\u0647 \u0648 \u0622\u0633\u0627\u0646 \u0627\u0633\u062a.<\/p>\n<p style=\"text-align: justify;\">\u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f ERC20 \u06cc\u06a9 \u0645\u0634\u06a9\u0644 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647 \u0631\u0627 \u062d\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f: \u0628\u0627\u0632\u0627\u0631\u200c\u0647\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0648 \u06a9\u06cc\u0641 \u067e\u0648\u0644\u200c\u0647\u0627\u06cc \u0631\u0645\u0632\u0646\u06af\u0627\u0631\u06cc \u0628\u0631\u0627\u06cc \u0628\u0631\u0642\u0631\u0627\u0631\u06cc \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0627 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u060c \u0628\u0647 \u06cc\u06a9 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u0648\u0627\u062d\u062f \u0648 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f \u06a9\u0647 \u0634\u0627\u0645\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062a\u0639\u0627\u0645\u0644 \u0628\u06cc\u0646 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062e\u0631\u06cc\u062f \u062a\u0648\u06a9\u0646 \u0627\u0633\u062a.<\/p>\n<p style=\"text-align: justify;\">\u062f\u0642\u06cc\u0642\u0627\u064b \u0645\u0627\u0646\u0646\u062f \u0633\u0627\u06cc\u0631 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc <a href=\"https:\/\/avalpardakht.com\/blog\/%d9%87%d9%85%d9%87-%da%86%db%8c%d8%b2-%d8%af%d8%b1-%d9%85%d9%88%d8%b1%d8%af-%d8%a7%d8%aa%d8%b1%db%8c%d9%88%d9%85-2-0-%d9%88-%d8%a7%d9%87%d8%af%d8%a7%d9%81-%d8%b7%d8%b1%d8%a7%d8%ad%db%8c-%d8%a7%d8%aa\/\">Ethereum<\/a>\u060c \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ERC20 \u0646\u06cc\u0632 \u0628\u0647 \u0635\u0648\u0631\u062a \u0642\u0631\u0627\u0631\u062f\u0627\u062f\u0647\u0627\u06cc \u0647\u0648\u0634\u0645\u0646\u062f \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0648 \u0628\u0647 \u0635\u0648\u0631\u062a \u063a\u06cc\u0631 \u0645\u062a\u0645\u0631\u06a9\u0632 \u0628\u0631 \u0631\u0648\u06cc \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u062c\u0627\u0632\u06cc Ethereum (EVM) \u0627\u062c\u0631\u0627 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/p>\n<h3>Solidity: \u0632\u0628\u0627\u0646 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0647\u0648\u0634\u0645\u0646\u062f<\/h3>\n<p style=\"text-align: justify;\">\u0642\u0631\u0627\u0631\u062f\u0627\u062f\u200c\u0647\u0627\u06cc \u0647\u0648\u0634\u0645\u0646\u062f Ethereum \u0628\u0647 \u0635\u0648\u0631\u062a Solidid \u0646\u0648\u0634\u062a\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0632\u0628\u0627\u0646 \u0647\u0627\u06cc \u0645\u0646\u0627\u0633\u0628\u200c\u062a\u0631 \u0648 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0632\u0628\u0627\u0646 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u0647\u0645\u0686\u0646\u0627\u0646 \u0627\u06cc\u0646 \u0632\u0628\u0627\u0646 \u067e\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u200c\u062a\u0631\u06cc\u0646 \u0627\u0633\u062a. <a href=\"https:\/\/avalpardakht.com\/blog\/%d8%b2%d8%a8%d8%a7%d9%86-%d8%a8%d8%b1%d9%86%d8%a7%d9%85%d9%87-%d9%86%d9%88%db%8c%d8%b3%db%8c-%d8%a8%d9%84%d8%a7%da%a9-%da%86%db%8c%d9%86-%d9%88-%d8%a2%d8%b4%d9%86%d8%a7%db%8c%db%8c-%d8%a8%d8%a7-%d9%85\/\">\u0632\u0628\u0627\u0646 Solidity<\/a> \u0645\u0634\u0627\u0628\u0647 JavaScript \u0627\u0633\u062a\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0627\u06af\u0631 \u0634\u0645\u0627 \u0627\u0632 JavaScript\u060c \u06cc\u0627 \u062d\u062a\u06cc \u062c\u0627\u0648\u0627 \u0648 \u0633\u0627\u06cc\u0631 \u0632\u0628\u0627\u0646\u200c\u0647\u0627\u06cc C \u062f\u0627\u0646\u0634\u06cc \u062f\u0627\u0631\u06cc\u062f\u060c \u0647\u06cc\u0686 \u0645\u0634\u06a9\u0644\u06cc \u0628\u0631\u0627\u06cc \u0641\u0647\u0645\u06cc\u062f\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u0647 \u0627\u0637\u0644\u0627\u0639\u0627\u062a\u06cc \u062f\u0631 \u06cc\u06a9 \u0642\u0637\u0639\u0647 Solidid \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u062d\u062a\u06cc \u0628\u062f\u0648\u0646 \u062f\u0627\u0634\u062a\u0646 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u06a9\u0627\u0641\u06cc \u0627\u0632 \u0632\u0628\u0627\u0646 Solidid \u0646\u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0627\u0634\u062a.<\/p>\n<p style=\"text-align: justify;\">\u0627\u06cc\u0646\u062c\u0627 \u0628\u062e\u0634 \u062c\u0630\u0627\u0628 \u0634\u0631\u0648\u0639 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0628\u0627\u06cc\u062f \u0628\u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u06cc\u06a9 \u0641\u0631\u0635\u062a \u06a9\u0645 \u06cc\u06a9 \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0633\u0627\u062f\u0647 ERC20 \u0631\u0627 \u0634\u0631\u0648\u0639 \u0628\u0647 \u06a9\u062f\u0646\u0648\u06cc\u0633\u06cc \u06a9\u0646\u06cc\u062f. \u06cc\u06a9 \u06a9\u0627\u0631 \u0633\u0627\u062f\u0647 \u0627\u0633\u062a\u060c \u0628\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u06a9\u0627\u0641\u06cc \u0633\u0627\u062f\u0647 \u06a9\u0647 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0686\u06af\u0648\u0646\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u06a9\u0645\u062a\u0631 \u0627\u0632 \u06cc\u06a9 \u0633\u0627\u0639\u062a \u062a\u0648\u06a9\u0646 ERC20 \u0631\u0627 \u0628\u0646\u0648\u06cc\u0633\u06cc\u062f \u0648 \u062f\u0631 \u062c\u0627\u06cc \u0645\u062e\u0635\u0648\u0635 \u0622\u0646 \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f.<\/p>\n<h2>\u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 | \u0628\u0631\u0631\u0633\u06cc \u0627\u062c\u0645\u0627\u0644\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f ERC20 Token<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-16507 aligncenter\" src=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/1-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg\" alt=\"1 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 ERC20\" width=\"750\" height=\"430\" srcset=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/1-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg 750w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/1-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-300x172.jpg 300w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/1-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-696x399.jpg 696w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/p>\n<p style=\"text-align: justify;\"><strong>ERC20 \u0686\u06cc\u0633\u062a\u061f<\/strong> \u0628\u0647 \u0628\u06cc\u0627\u0646 \u0633\u0627\u062f\u0647\u060c \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f ERC20 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0628\u0627\u06cc\u062f \u062a\u0648\u0633\u0637 \u0647\u0645\u0647 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ERC20 \u0627\u062c\u0631\u0627 \u0634\u0648\u062f \u062a\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0627\u062f\u063a\u0627\u0645 \u0628\u0627 \u0633\u0627\u06cc\u0631 \u0642\u0631\u0627\u0631\u062f\u0627\u062f\u200c\u0647\u0627\u060c \u06a9\u06cc\u0641 \u067e\u0648\u0644\u200c\u0647\u0627 \u06cc\u0627 \u0628\u0627\u0632\u0627\u0631\u200c\u0647\u0627 \u0631\u0627 \u0641\u0631\u0627\u0647\u0645 \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0646\u0633\u0628\u062a\u0627\u064b \u06a9\u0648\u062a\u0627\u0647 \u0648 \u0627\u0633\u0627\u0633\u06cc \u0627\u0633\u062a.<\/p>\n<p style=\"text-align: left;\">function totalSupply() public view returns (uint256); function balanceOf(address tokenOwner) public view returns (uint); function allowance(address tokenOwner, address spender) public view returns (uint); function transfer(address to, uint tokens) public returns (bool); function approve(address spender, uint tokens) public returns (bool); function transferFrom(address from, address to, uint tokens) public returns (bool);<\/p>\n<p style=\"text-align: justify;\">\u062a\u0648\u0627\u0628\u0639 ERC20 \u0628\u0647 \u06cc\u06a9 \u06a9\u0627\u0631\u0628\u0631 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u06a9\u06cc\u0641 \u067e\u0648\u0644 \u0631\u0645\u0632\u0646\u06af\u0627\u0631\u06cc\u060c \u0627\u0632 \u0645\u0648\u062c\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631 \u0645\u0637\u0644\u0639 \u0634\u0648\u062f \u0648 \u0628\u0627 \u0645\u062c\u0648\u0632 \u0645\u0646\u0627\u0633\u0628 \u0648\u062c\u0648\u0647 \u0631\u0627 \u0627\u0632 \u06cc\u06a9 \u06a9\u0627\u0631\u0628\u0631 \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u062f\u06cc\u06af\u0631 \u0627\u0646\u062a\u0642\u0627\u0644 \u062f\u0647\u062f.<\/p>\n<h3>\u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0647\u0648\u0634\u0645\u0646\u062f \u062f\u0648 \u0648\u0627\u0642\u0639\u0647 \u0645\u0634\u062e\u0635 \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f:<\/h3>\n<p style=\"text-align: left;\">event Approval(address indexed tokenOwner, address indexed spender, uint tokens); event Transfer(address indexed from, address indexed to, uint tokens);<\/p>\n<p style=\"text-align: justify;\">\u0648\u0642\u062a\u06cc \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0627\u062c\u0627\u0632\u0647 \u062f\u0627\u062f\u0647 \u0634\u0648\u062f \u062a\u0648\u06a9\u0646 \u0627\u0632 \u062d\u0633\u0627\u0628 \u0627\u0648 \u062e\u0627\u0631\u062c \u0634\u0648\u062f\u060c \u067e\u0633 \u0627\u0632 \u0627\u0646\u062a\u0642\u0627\u0644 \u0627\u06cc\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f\u200c\u0647\u0627 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u062a\u0648\u0627\u0628\u0639 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f ERC20\u060c \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ERC20 \u062f\u0627\u0631\u0627\u06cc \u0632\u0645\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0622\u0646\u200c\u0647\u0627 \u0639\u0645\u0644\u0627\u064b \u0628\u0647 \u0628\u062e\u0634\u06cc \u0627\u0632 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f ERC20 \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647\u200c\u0627\u0646\u062f. \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0686\u0646\u062f \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u0632\u0645\u06cc\u0646\u0647 \u0647\u0627 \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p style=\"text-align: left;\">string public constant name; string public constant symbol; uint8 public constant decimals;<\/p>\n<h3>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0686\u0646\u062f \u0646\u06a9\u062a\u0647 \u062f\u0631 \u0645\u0648\u0631\u062f \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc ERC20 \u0648 Solidity \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/h3>\n<ul>\n<li style=\"text-align: justify;\">view \u062f\u0631 \u0627\u0635\u0644 \u06cc\u0639\u0646\u06cc \u0648\u0636\u0639\u06cc\u062a \u062f\u0627\u062e\u0644\u06cc \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0628\u0627 \u0639\u0645\u0644\u06a9\u0631\u062f \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0645\u06cc\u200c\u06a9\u0646\u062f<\/li>\n<li style=\"text-align: justify;\">\u0627\u06af\u0631 \u0642\u0628\u0644\u0627\u064b \u0645\u0647\u0627\u0631\u062a\u200c\u0647\u0627\u06cc \u0627\u0633\u0627\u0633\u06cc Java \/ JavaScript \u0631\u0627 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f\u060c \u0628\u0627\u06cc\u062f \u06a9\u062f\u200c\u0647\u0627\u06cc \u0632\u0628\u0627\u0646 Solidity \u0628\u0631\u0627\u06cc\u062a\u0627\u0646 \u0648\u0627\u0636\u062d \u0628\u0627\u0634\u062f.<\/li>\n<li style=\"text-align: justify;\">\u0646\u0648\u0634\u062a\u0646 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ERC20 \u062f\u0631 Solidity<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">\u0627\u06a9\u0646\u0648\u0646 \u06a9\u0647 \u0627\u0635\u0648\u0644 \u0631\u0627 \u0628\u06cc\u0627\u0646 \u06a9\u0631\u062f\u06cc\u0645 \u0648 \u062a\u0648\u0636\u06cc\u062d \u062f\u0627\u062f\u06cc\u0645 \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u0631\u0645\u0632 ERC20 \u0686\u0647 \u0686\u06cc\u0632\u06cc \u0644\u0627\u0632\u0645 \u0627\u0633\u062a\u060c \u0648\u0642\u062a \u0622\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0634\u0631\u0648\u0639 \u0628\u0647 \u0646\u0648\u0634\u062a\u0646 \u06a9\u0646\u06cc\u0645.<\/p>\n<h3>\u00a0\u0627\u0628\u062a\u062f\u0627 \u0628\u0627\u06cc\u062f \u062f\u0648 \u0627\u0635\u0644 mapping (\u0646\u0642\u0634\u0647 \u0628\u0631\u062f\u0627\u0631\u06cc) \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u0645. \u0627\u06cc\u0646 \u0645\u0641\u0647\u0648\u0645 \u062f\u0631 Solidity \u0628\u0631\u0627\u06cc \u0646\u0645\u0627\u06cc\u0634 \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u0627\u0633\u062a:<\/h3>\n<p style=\"text-align: left;\">mapping(address =&gt; uint256) balances; mapping(address =&gt; mapping (address =&gt; uint256)) allowed;<\/p>\n<p style=\"text-align: justify;\">\u0639\u0628\u0627\u0631\u062a mapping (\u0622\u062f\u0631\u0633 =&gt; uint256) \u06cc\u06a9 \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u0646\u062c\u0645\u0646\u06cc \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u06a9\u0644\u06cc\u062f\u200c\u0647\u0627\u06cc \u0622\u0646 \u0627\u0632 \u0646\u0648\u0639 \u0622\u062f\u0631\u0633 \u0627\u0633\u062a. \u0639\u062f\u062f\u06cc \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0646 \u0622\u062f\u0631\u0633\u200c\u0647\u0627\u06cc \u062d\u0633\u0627\u0628 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0622\u0646 \u0627\u0632 \u0646\u0648\u0639 uint256 \u0627\u0633\u062a. \u06cc\u06a9 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u06f2\u06f5\u06f6 \u0628\u06cc\u062a\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0639\u0645\u0648\u0644 \u0628\u0631\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0628\u0627\u0642\u06cc \u0645\u0627\u0646\u062f\u0647\u200c\u0647\u0627\u06cc \u0631\u0645\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0627\u0648\u0644\u06cc\u0646 \u0639\u062f\u062f \u062f\u0631 mapping \u0646\u0642\u0634\u0647 \u0628\u0631\u062f\u0627\u0631\u06cc \u0631\u0645\u0632 \u0648 \u0645\u0648\u062c\u0648\u062f\u06cc \u0647\u0631 \u062d\u0633\u0627\u0628 \u0645\u0627\u0644\u06a9 \u0631\u0627 \u0646\u06af\u0647 \u0645\u06cc\u200c\u062f\u0627\u0631\u062f.<\/p>\n<p style=\"text-align: justify;\">\u062f\u0648\u0645\u06cc\u0646 \u0639\u062f\u062f mapping \u0646\u0642\u0634\u0647 \u0628\u0631\u062f\u0627\u0631\u06cc\u060c \u0634\u0627\u0645\u0644 \u062a\u0645\u0627\u0645\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062d\u0633\u0627\u0628\u200c\u0647\u0627\u06cc \u062a\u0623\u06cc\u06cc\u062f \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0628\u0631\u062f\u0627\u0634\u062a \u0627\u0632 \u06cc\u06a9 \u062d\u0633\u0627\u0628 \u0645\u0639\u06cc\u06cc\u0646\u060c \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0645\u0628\u0644\u063a \u0628\u0631\u062f\u0627\u0634\u062a \u0645\u062c\u0627\u0632 \u0628\u0631\u0627\u06cc \u0647\u0631 \u06cc\u06a9 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0627\u06cc\u0646 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0628\u0647 \u0647\u0645\u0631\u0627\u0647 \u0633\u0627\u06cc\u0631 \u0642\u0633\u0645\u062a\u200c\u0647\u0627\u06cc \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u062f\u0631 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0630\u062e\u06cc\u0631\u0647 \u0648 \u0627\u0633\u062a\u062e\u0631\u0627\u062c \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062f\u0631 \u0647\u0645\u0647 \u062f\u0631\u06af\u0627\u0647\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631 \u0634\u0628\u06a9\u0647 \u0645\u0646\u062a\u0634\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0641\u0636\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646\u060c \u06af\u0631\u0627\u0646 \u0642\u06cc\u0645\u062a \u0627\u0633\u062a \u0648 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0628\u0627\u06cc\u062f \u0628\u0631\u0627\u06cc \u0622\u0646 \u06cc\u06a9 \u0647\u0632\u06cc\u0646\u0647 \u0627\u0636\u0627\u0641\u06cc \u067e\u0631\u062f\u0627\u062e\u062a \u06a9\u0646\u0646\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0647\u0645\u06cc\u0634\u0647 \u0628\u0627\u06cc\u062f \u0633\u0639\u06cc \u06a9\u0646\u06cc\u062f \u0627\u0646\u062f\u0627\u0632\u0647 \u0641\u0627\u06cc\u0644\u200c\u0647\u0627 \u0631\u0627 \u0628\u0647 \u062d\u062f\u0627\u0642\u0644 \u0628\u0631\u0633\u0627\u0646\u06cc\u062f \u0648 \u062f\u0631 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u062d\u062f\u0627\u0642\u0644\u200c\u062a\u0631\u06cc\u0646 \u0645\u06cc\u0632\u0627\u0646 \u0645\u0645\u06a9\u0646 \u0641\u0636\u0627 \u0627\u0634\u063a\u0627\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0627\u06a9\u0646\u0648\u0646 \u06a9\u0647 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0631\u0627 \u062f\u0631 \u0627\u062e\u062a\u06cc\u0627\u0631 \u062f\u0627\u0631\u06cc\u0645\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0645\u0646\u0637\u0642 ERC20 \u0631\u0627 \u062f\u0631 \u062a\u0648\u0627\u0628\u0639 \u0628\u0646\u0648\u06cc\u0633\u06cc\u0645.<\/p>\n<h2>\u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 | \u062a\u0646\u0638\u06cc\u0645 \u062a\u0639\u062f\u0627\u062f \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ICO<\/h2>\n<p style=\"text-align: justify;\">\u0686\u06af\u0648\u0646\u0647 \u062a\u0639\u062f\u0627\u062f <a href=\"https:\/\/avalpardakht.com\/blog\/ico-%da%86%db%8c%d8%b3%d8%aa-%d9%88-%da%86%da%af%d9%88%d9%86%d9%87-%d8%a8%d8%a7%db%8c%d8%af-%d8%a8%d9%87-ico-%d9%87%d8%a7-%d8%a7%d8%b9%d8%aa%d9%85%d8%a7%d8%af-%da%a9%d9%86%db%8c%d9%85\/\">\u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ICO<\/a> \u0631\u0627 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u0645\u061f \u062e\u0648\u0628\u060c \u0686\u0646\u062f\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062a\u0639\u062f\u0627\u062f \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc ICO \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u0648 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0628\u0647 \u062a\u0646\u0647\u0627\u06cc\u06cc \u06cc\u06a9 \u0628\u062d\u062b \u0637\u0648\u0644\u0627\u0646\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0628\u0631\u0627\u06cc \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0627 \u067e\u0627\u06cc\u06cc\u0646\u200c\u062a\u0631\u06cc\u0646 \u0633\u0637\u062d \u0622\u06af\u0627\u0647\u06cc \u0627\u0632 ECR20 \u0628\u062a\u0648\u0627\u0646\u06cc\u062f \u062a\u0648\u06a9\u0646 \u0628\u0633\u0627\u0632\u06cc\u062f\u060c \u0645\u0627 \u0627\u0632 \u0633\u0627\u062f\u0647\u200c\u062a\u0631\u06cc\u0646 \u0631\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f: \u0645\u0642\u062f\u0627\u0631 \u06a9\u0644 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u06cc\u062c\u0627\u062f \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u062f \u0648 \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0647\u0645\u0647 \u0622\u0646\u200c\u0647\u0627 \u0631\u0627 \u0628\u0647 &#8220;\u0645\u0627\u0644\u06a9 \u0642\u0631\u0627\u0631\u062f\u0627\u062f&#8221; \u06cc\u0639\u0646\u06cc \u0635\u0627\u062d\u0628 \u062d\u0633\u0627\u0628 \u0647\u0648\u0634\u0645\u0646\u062f \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0647\u06cc\u062f:<\/p>\n<p style=\"text-align: left;\">uint256 totalSupply_; constructor(uint256 total) public { totalSupply_ = total; balances[msg.sender] = _totalSupply; }<\/p>\n<p style=\"text-align: justify;\">\u06cc\u06a9 \u0639\u0645\u0644\u06a9\u0631\u062f \u062e\u0627\u0635 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u067e\u0633 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u062a\u0648\u0633\u0637 <a href=\"https:\/\/ethereum.org\/en\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Ethereum<\/a> \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0647 \u0637\u0648\u0631 \u0645\u0639\u0645\u0648\u0644 \u0628\u0631\u0627\u06cc \u0627\u0646\u062f\u0627\u0632\u0647 \u06af\u06cc\u0631\u06cc \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644\u06cc\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u200c\u0647\u0627\u06cc \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p style=\"text-align: justify;\">msg \u06cc\u06a9 \u0645\u062a\u063a\u06cc\u0631 \u062c\u0647\u0627\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062a\u0648\u0633\u0637 \u062e\u0648\u062f Ethereum \u0645\u062d\u0627\u0633\u0628\u0647 \u0648 \u0627\u0639\u0644\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0634\u0627\u0645\u0644 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u0647\u0645 \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0627\u0633\u062a. \u067e\u0648\u0634\u0647\u200c\u0627\u06cc \u06a9\u0647 \u0645\u0627 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u200c\u06a9\u0646\u06cc\u0645: msg.sender \u062d\u0627\u0648\u06cc \u062d\u0633\u0627\u0628 Ethereum \u0627\u0633\u062a \u06a9\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0641\u0639\u0644\u06cc \u0631\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0641\u0642\u0637 \u0633\u0627\u0632\u0646\u062f\u0647 \u062d\u0633\u0627\u0628 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0627\u06cc\u0646 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u062f. \u0647\u0646\u06af\u0627\u0645 \u0634\u0631\u0648\u0639\u060c \u0627\u06cc\u0646 \u062a\u0648\u06a9\u0646\u060c \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc \u0645\u0648\u062c\u0648\u062f \u0631\u0627 \u0628\u0647 \u062d\u0633\u0627\u0628 &#8220;\u0645\u0627\u0644\u06a9 \u0642\u0631\u0627\u0631\u062f\u0627\u062f&#8221; \u0627\u062e\u062a\u0635\u0627\u0635 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/p>\n<h2>\u06a9\u0644 \u062a\u0648\u06a9\u0646 \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f<\/h2>\n<p><img decoding=\"async\" class=\"wp-image-16508 size-full aligncenter\" src=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/4-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg\" alt=\"4 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 ERC20\" width=\"750\" height=\"500\" srcset=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/4-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg 750w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/4-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-300x200.jpg 300w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/4-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-696x464.jpg 696w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/p>\n<p style=\"text-align: left;\">function totalSupply() public view returns (uint256) {return totalSupply_;}<\/p>\n<p style=\"text-align: justify;\">\u0627\u06cc\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u062f\u0648\u0646 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0645\u0627\u0644\u06a9\u060c \u06a9\u0644 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc \u0627\u062e\u062a\u0635\u0627\u0635 \u06cc\u0627\u0641\u062a\u0647 \u062a\u0648\u0633\u0637 \u0627\u06cc\u0646 \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0631\u0627 \u0628\u0631 \u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<h3>Token Balance of Owner \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f<\/h3>\n<p style=\"text-align: left;\">function balanceOf(address tokenOwner) public view returns (uint) { return balances[tokenOwner]; }<\/p>\n<p style=\"text-align: justify;\">\u0645\u0648\u062c\u0648\u062f\u06cc \u0641\u0639\u0644\u06cc \u06cc\u06a9 \u062d\u0633\u0627\u0628 \u0631\u0627 \u06a9\u0647 \u062a\u0648\u0633\u0637 \u0622\u062f\u0631\u0633 \u0635\u0627\u062d\u0628\u0627\u0646 \u0622\u0646 \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u0628\u0631 \u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f. \u0631\u0645\u0632\u200c\u0647\u0627 \u0631\u0627 \u0628\u0647 \u062d\u0633\u0627\u0628 \u062f\u06cc\u06af\u0631\u06cc \u0645\u0646\u062a\u0642\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n<p style=\"text-align: left;\">function transfer(address receiver, uint numTokens) public returns (bool) { require(numTokens &lt;= balances[msg.sender]); balances[msg.sender] = balances[msg.sender] \u2014 numTokens; balances[receiver] = balances[receiver] + numTokens; emit Transfer(msg.sender, receiver, numTokens); return true; }<\/p>\n<p style=\"text-align: justify;\">\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0632 \u0646\u0627\u0645 \u0622\u0646 \u0645\u0634\u062e\u0635 \u0627\u0633\u062a\u060c\u00a0 \u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062a\u0648\u06a9\u0646 numTokens \u0627\u0632 \u0645\u0648\u062c\u0648\u062f\u06cc \u0645\u0627\u0644\u06a9 \u0628\u0647 \u062d\u0633\u0627\u0628 \u06af\u06cc\u0631\u0646\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u0646\u062a\u0642\u0627\u0644 \u062f\u0647\u0646\u062f\u0647 msg.sender \u0627\u0633\u062a. \u0639\u0645\u0644\u06a9\u0631\u062f \u0622\u0646 \u0628\u0647 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0627\u0633\u062a \u06a9\u0647 \u0641\u0642\u0637 \u0635\u0627\u062d\u0628 \u0631\u0645\u0632\u200c\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0622\u0646\u200c\u0647\u0627 \u0631\u0627 \u0628\u0647 \u062f\u06cc\u06af\u0631\u0627\u0646 \u0645\u0646\u062a\u0642\u0644 \u06a9\u0646\u0646\u062f.<\/p>\n<p style=\"text-align: justify;\">\u062f\u0631 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u0646\u062a\u0642\u0627\u0644\u060c \u0627\u0632 \u0628\u0627\u0642\u06cc \u0645\u0627\u0646\u062f\u0647 \u062d\u0633\u0627\u0628 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062f\u0631 \u0635\u0648\u0631\u062a \u0639\u062f\u0645 \u0645\u0648\u0641\u0642\u06cc\u062a \u06cc\u06a9 \u06af\u0630\u0627\u0631\u0647\u060c \u0645\u0639\u0627\u0645\u0644\u0647 \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u0628\u0631\u06af\u0634\u062a \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0647\u06cc\u0686 \u062a\u063a\u06cc\u06cc\u0631\u06cc \u062f\u0631 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0627\u0639\u0645\u0627\u0644 \u0646\u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p style=\"text-align: justify;\">\u062f\u0631\u0633\u062a \u0642\u0628\u0644 \u0627\u0632 \u062e\u0631\u0648\u062c\u060c \u0628\u0627\u0639\u062b \u0627\u0646\u062a\u0642\u0627\u0644 ERC20 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0628\u0647 \u062f\u0627\u0631\u0646\u062f\u06af\u0627\u0646 \u062d\u0633\u0627\u0628 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 \u0646\u0633\u0628\u062a \u0628\u0647 \u0627\u062a\u0645\u0627\u0645 \u0648 \u062a\u0627\u06cc\u06cc\u062f \u0622\u0646 \u0648\u0627\u06a9\u0646\u0634 \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f.<\/p>\n<h2>\u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 | \u062a\u0627\u06cc\u06cc\u062f \u0628\u0631\u0627\u06cc \u0628\u0631\u062f\u0627\u0634\u062a\u0646 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627<\/h2>\n<p><img decoding=\"async\" class=\"size-full wp-image-16509 aligncenter\" src=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/3-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg\" alt=\"3 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 ERC20\" width=\"750\" height=\"375\" srcset=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/3-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg 750w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/3-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-300x150.jpg 300w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/3-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-696x348.jpg 696w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/p>\n<p style=\"text-align: justify;\">\u0627\u06cc\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u063a\u0644\u0628 \u062f\u0631 \u0633\u0646\u0627\u0631\u06cc\u0648\u06cc \u0628\u0627\u0632\u0627\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p style=\"text-align: left;\">function approve(address delegate, uint numTokens) public returns (bool) { allowed[msg.sender][delegate] = numTokens; emit Approval(msg.sender, delegate, numTokens); return true; }<\/p>\n<p style=\"text-align: justify;\">\u06cc\u06a9 \u0645\u0627\u0644\u06a9 \u06cc\u0639\u0646\u06cc msg \u0631\u0627 \u062a\u0627\u06cc\u06cc\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0631\u0627\u06cc \u0628\u0631\u062f\u0627\u0634\u062a\u0646 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627 \u0627\u0632 \u062d\u0633\u0627\u0628 \u0648 \u0627\u0646\u062a\u0642\u0627\u0644 \u0622\u0646\u200c\u0647\u0627 \u0628\u0647 \u062d\u0633\u0627\u0628\u200c\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0645\u0634\u0627\u0647\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u0627\u06cc\u0646 \u06a9\u062f \u0628\u0631\u0627\u06cc \u0633\u0646\u0627\u0631\u06cc\u0648\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0627\u0644\u06a9\u0627\u0646 \u062f\u0631 \u0628\u0627\u0632\u0627\u0631 \u062a\u0648\u06a9\u0646 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0647 \u0628\u0627\u0632\u0627\u0631 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0645\u0639\u0627\u0645\u0644\u0647 \u0631\u0627 \u0628\u062f\u0648\u0646 \u0627\u0646\u062a\u0638\u0627\u0631 \u0628\u0631\u0627\u06cc \u062a\u0623\u06cc\u06cc\u062f \u0642\u0628\u0644\u06cc \u0646\u0647\u0627\u06cc\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<p style=\"text-align: justify;\">\u062f\u0631 \u067e\u0627\u06cc\u0627\u0646 \u0627\u062c\u0631\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f\u060c \u06cc\u06a9 \u0645\u0631\u062d\u0644\u0647 \u062a\u0627\u06cc\u06cc\u062f \u062f\u0627\u0631\u062f.<\/p>\n<h3>\u062a\u0639\u062f\u0627\u062f \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc \u062a\u0623\u06cc\u06cc\u062f \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0628\u0631\u062f\u0627\u0634\u062a \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f<\/h3>\n<p style=\"text-align: left;\">function allowance(address owner, address delegate) public view returns (uint) {return allowed[owner][delegate];}<\/p>\n<p style=\"text-align: justify;\">\u0627\u06cc\u0646 \u062a\u0627\u0628\u0639 \u062a\u0639\u062f\u0627\u062f \u0645\u062c\u0627\u0632 \u062a\u0648\u06a9\u0646 \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u0645\u0627\u0644\u06a9 \u0631\u0627 \u0628\u0647 \u062d\u0633\u0627\u0628 \u062e\u0627\u0635\u06cc \u0628\u0631 \u0645\u06cc\u200c\u06af\u0631\u062f\u0627\u0646\u062f\u060c \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<h2>\u0627\u0646\u062a\u0642\u0627\u0644 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627 \u062a\u0648\u0633\u0637 \u0646\u0645\u0627\u06cc\u0646\u062f\u0647<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-16510 aligncenter\" src=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/2-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg\" alt=\"2 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 ERC20\" width=\"750\" height=\"346\" srcset=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/2-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg 750w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/2-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-300x138.jpg 300w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/2-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-696x321.jpg 696w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/p>\n<p style=\"text-align: justify;\">\u062a\u0627\u0628\u0639 transferFrom \u0647\u0645\u0627\u0646 \u062a\u0627\u0628\u0639 \u062a\u0623\u06cc\u06cc\u062f \u0627\u0633\u062a \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u062f\u0631 \u0645\u0648\u0631\u062f \u0622\u0646 \u0628\u062d\u062b \u06a9\u0631\u062f\u06cc\u0645. \u0627\u06cc\u0646 \u0627\u062c\u0627\u0632\u0647 \u0631\u0627 \u0628\u0647 \u0646\u0645\u0627\u06cc\u0646\u062f\u0647 \u062a\u0627\u06cc\u06cc\u062f \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0628\u0631\u062f\u0627\u0634\u062a \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 \u0648\u062c\u0648\u0647 \u0645\u0627\u0644\u06a9 \u0631\u0627 \u0628\u0647 \u06cc\u06a9 \u062d\u0633\u0627\u0628 \u062b\u0627\u0644\u062b \u0645\u0646\u062a\u0642\u0644 \u06a9\u0646\u062f.<\/p>\n<p style=\"text-align: left;\">function transferFrom(address owner, address buyer, uint numTokens) public returns (bool) { require(numTokens &lt;= balances[owner]); require(numTokens &lt;= allowed[owner][msg.sender]); balances[owner] = balances[owner] \u2014 numTokens; allowed[owner][msg.sender] = allowed[from][msg.sender] \u2014 numTokens; balances[buyer] = balances[buyer] + numTokens; Transfer(owner, buyer, numTokens); return true; }<\/p>\n<p style=\"text-align: justify;\">\u0627\u06cc\u0646 \u062f\u0648 \u0645\u0648\u0631\u062f \u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639 \u0639\u0645\u0644\u06a9\u0631\u062f \u0644\u0627\u0632\u0645 \u0647\u0633\u062a\u0646\u062f \u062a\u0627 \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0645\u0639\u0627\u0645\u0644\u0647 \u0642\u0627\u0646\u0648\u0646\u06cc \u0627\u0633\u062a\u060c \u06cc\u0639\u0646\u06cc \u0645\u0627\u0644\u06a9 \u0628\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u06a9\u0627\u0641\u06cc \u062a\u0648\u06a9\u0646 \u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062f\u0627\u0631\u062f \u0648 \u0646\u0645\u0627\u06cc\u0646\u062f\u0647 numTokens \u0631\u0627 \u0628\u0631\u0627\u06cc \u0628\u0631\u062f\u0627\u0634\u062a \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p style=\"text-align: justify;\">\u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0627\u0646\u062a\u0642\u0627\u0644 \u0645\u0642\u062f\u0627\u0631 numTokens \u0627\u0632 \u0645\u0627\u0644\u06a9 \u0628\u0647 \u062e\u0631\u06cc\u062f\u0627\u0631\u060c \u0627\u06cc\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0647\u0645\u0686\u0646\u06cc\u0646 numTokens \u0631\u0627 \u0627\u0632 \u0646\u0645\u0627\u06cc\u0646\u062f\u0647 \u06a9\u0645 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u0633\u0627\u0633\u0627\u064b \u0628\u0647 \u06cc\u06a9 \u0646\u0645\u0627\u06cc\u0646\u062f\u0647 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0686\u0646\u062f\u06cc\u0646 \u0628\u0631\u062f\u0627\u0634\u062a \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0646\u062f\u060c \u06a9\u0647 \u0627\u06cc\u0646 \u0631\u0641\u062a\u0627\u0631 \u0645\u0639\u0645\u0648\u0644 \u0628\u0627\u0632\u0627\u0631 \u0627\u0633\u062a.<\/p>\n<p style=\"text-align: justify;\">\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06a9\u0627\u0631 \u0631\u0627 \u0645\u062a\u0648\u0642\u0641 \u06a9\u0646\u06cc\u0645 \u0648 \u06cc\u06a9 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0645\u0639\u062a\u0628\u0631 ERC20 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u0645\u0627 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u0645 \u06cc\u06a9 \u06af\u0627\u0645 \u062c\u0644\u0648\u062a\u0631 \u0628\u0631\u0648\u06cc\u0645\u060c \u0648 \u06cc\u06a9 \u0631\u0645\u0632 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u0648 \u0627\u06cc\u0645\u0646 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645. \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0645\u0633\u062a\u0644\u0632\u0645 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u06a9\u062f\u200c\u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u06a9\u0645\u06cc \u0627\u06cc\u0645\u0646\u200c\u062a\u0631 \u06a9\u0646\u06cc\u0645\u060c \u0627\u0644\u0628\u062a\u0647 \u0647\u0646\u0648\u0632 \u0647\u0645 \u0642\u0627\u062f\u0631 \u062e\u0648\u0627\u0647\u06cc\u0645 \u0628\u0648\u062f \u06a9\u0647 \u062a\u0648\u06a9\u0646 \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u0633\u0627\u062f\u0647 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645.<\/p>\n<h2>\u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 | \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 Solidid : SafeMath<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-16511 aligncenter\" src=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/0-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg\" alt=\"0 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 ERC20\" width=\"750\" height=\"375\" srcset=\"https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/0-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20.jpg 750w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/0-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-300x150.jpg 300w, https:\/\/avalpardakht.com\/blog\/wp-content\/uploads\/2021\/03\/0-\u0622\u0645\u0648\u0632\u0634-\u0633\u0627\u062e\u062a-\u062a\u0648\u06a9\u0646-ERC20-\u062f\u0631-\u0634\u0628\u06a9\u0647-\u0628\u0644\u0627\u06a9\u0686\u06cc\u0646-ERC20-696x348.jpg 696w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/p>\n<p style=\"text-align: justify;\">SafeMath \u06cc\u06a9 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 Solidity \u0627\u0633\u062a \u06a9\u0647 \u0647\u062f\u0641 \u0622\u0646 \u0628\u0631\u062e\u0648\u0631\u062f \u0628\u0627 \u0647\u06a9\u0631\u200c\u0647\u0627\u06cc\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0647\u062f\u0641\u0634\u0627\u0646 \u0634\u06a9\u0633\u062a\u0646 \u0642\u0631\u0627\u0631\u062f\u0627\u062f\u200c\u0647\u0627 \u0627\u0633\u062a. \u062f\u0631 \u0686\u0646\u06cc\u0646 \u062d\u0645\u0644\u0647\u200c\u0627\u06cc\u060c \u0647\u06a9\u0631 \u0642\u0631\u0627\u0631\u062f\u0627\u062f \u0631\u0627 \u0645\u062c\u0628\u0648\u0631 \u0628\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0639\u062f\u062f\u06cc \u0646\u0627\u062f\u0631\u0633\u062a \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<p style=\"text-align: justify;\">SafeMath \u0642\u0628\u0644 \u0627\u0632 \u0627\u062a\u0641\u0627\u0642 \u0627\u0641\u062a\u0627\u062f\u0646\u060c \u0628\u0627 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0627\u0632 \u062d\u0633\u0627\u0628 \u0645\u062d\u0627\u0641\u0638\u062a \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062e\u0637\u0631 \u062d\u0645\u0644\u0647 \u0631\u0627 \u0627\u0632 \u0628\u06cc\u0646 \u0645\u06cc\u200c\u0628\u0631\u062f. \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0628\u0647 \u0642\u062f\u0631\u06cc \u06a9\u0648\u0686\u06a9 \u0627\u0633\u062a \u06a9\u0647 \u062a\u0642\u0631\u06cc\u0628\u0627 \u062c\u0627\u06cc\u06cc \u062f\u0631 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0627\u0634\u063a\u0627\u0644 \u0646\u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0628\u06cc\u0627\u06cc\u06cc\u062f SafeMath \u0631\u0627 \u0628\u0647 \u06a9\u062f \u062e\u0648\u062f \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u0645:<\/p>\n<p style=\"text-align: left;\">library SafeMath { \/\/ Only relevant functions function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b &lt;= a); return a \u2014 b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c &gt;= a); return c; } }<\/p>\n<p style=\"text-align: justify;\">SafeMath \u0628\u0631\u0627\u06cc \u062a\u0623\u06cc\u06cc\u062f \u0635\u062d\u062a \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u200c\u0647\u0627 \u0627\u0632 \u0639\u0628\u0627\u0631\u0627\u062a assert \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062f\u0631 \u0635\u0648\u0631\u062a \u0639\u062f\u0645 \u0645\u0648\u0641\u0642\u06cc\u062a\u060c \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u0645\u062a\u0648\u0642\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u06a9\u0644\u06cc\u0647 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0628\u0627\u06cc\u062f \u062f\u0648\u0628\u0627\u0631\u0647 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<h3>\u062f\u0631 \u0645\u0631\u062d\u0644\u0647 \u0628\u0639\u062f\u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u062c\u0645\u0644\u0647 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0645\u0639\u0631\u0641\u06cc \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0628\u0647 Compiler Solidity \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u0645:<\/h3>\n<p style=\"text-align: left;\">using SafeMath for uint256;<\/p>\n<p style=\"text-align: justify;\">\u0633\u067e\u0633\u060c \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0633\u0627\u062f\u0647\u200c\u0627\u06cc \u06a9\u0647 \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u06cc\u0645 \u0631\u0627 \u0628\u0627 \u062a\u0648\u0627\u0628\u0639 SafeMath \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645:<\/p>\n<p style=\"text-align: left;\">balances[msg.sender] = balances[msg.sender].sub(numTokens); balances[receiver] = balances[receiver].add(numTokens); balances[buyer] = balances[buyer].add(numTokens); balances[owner] = balances[owner].sub(numTokens);<\/p>\n<p style=\"text-align: justify;\">\u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 Ethereum \u0645\u0639\u0645\u0648\u0644\u0627 \u0627\u0632 \u0627\u0628\u0632\u0627\u0631\u200c\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f Truffle \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0628\u0631\u0627\u06cc \u0646\u06cc\u0627\u0632\u200c\u0647\u0627\u06cc \u0645\u062d\u062f\u0648\u062f \u0634\u0645\u0627 \u0648 \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0622\u0645\u0648\u0632\u0634\u200c\u0647\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u062a\u0646\u0647\u0627 \u0627\u0628\u0632\u0627\u0631 Remix \u06a9\u0627\u0641\u06cc \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f.<\/p>\n<p style=\"text-align: justify;\">\u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646\u060c \u0634\u0645\u0627 \u0628\u0627\u06cc\u062f <a href=\"https:\/\/avalpardakht.com\/blog\/%da%a9%db%8c%d9%81-%d9%be%d9%88%d9%84-%d9%85%d8%aa%d8%a7-%d9%85%d8%a7%d8%b3%da%a9-metamask-%da%86%db%8c%d8%b3%d8%aa%d8%9f\/\">\u067e\u0644\u0627\u06af\u06cc\u0646 Metamask<\/a> \u0631\u0627 \u0628\u0631 \u0631\u0648\u06cc \u0645\u0631\u0648\u0631\u06af\u0631 \u062e\u0648\u062f \u0646\u0635\u0628 \u06a9\u0646\u06cc\u062f \u0648 \u06cc\u06a9 \u062d\u0633\u0627\u0628 \u06a9\u0627\u0631\u0628\u0631\u06cc Rinkeby (Ethereum test (Ethereum test) \u0631\u0627 \u0628\u0627 \u062d\u062f\u0627\u0642\u0644 \u0628\u0631\u062e\u06cc \u0627\u0632 cheenkbery \u062f\u0631 \u0622\u0646 \u0646\u0635\u0628 \u06a9\u0646\u06cc\u062f. \u0627\u06cc\u0646 \u0645\u0631\u0627\u062d\u0644 \u0646\u0633\u0628\u062a\u0627 \u0633\u0627\u062f\u0647 \u0647\u0633\u062a\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u0627 \u0628\u0647 \u062c\u0632\u0626\u06cc\u0627\u062a \u0646\u062e\u0648\u0627\u0647\u06cc\u0645 \u0631\u0641\u062a.<\/p>\n<p style=\"text-align: justify;\">\u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u0627\u06cc\u0646 \u0627\u0628\u0632\u0627\u0631\u200c\u0647\u0627 \u0631\u0627 \u0646\u062f\u0627\u0631\u06cc\u062f \u0628\u0647 \u0648\u0628\u0633\u0627\u06cc\u062a Metamask \u0648 Rinkeby \u0628\u0631\u0627\u06cc \u062f\u0627\u0646\u0644\u0648\u062f \u0628\u0631\u0648\u06cc\u062f. \u062d\u0627\u0644\u0627\u060c \u0645\u0627 \u0628\u0647 Remix \u0645\u06cc\u200c\u0631\u0648\u06cc\u0645 \u0648 \u06a9\u062f\u200c\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0622\u0646 \u0648\u0627\u0631\u062f \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645\u060c \u0627\u0632 \u062c\u0645\u0644\u0647 \u062e\u0637 Pragma \u0648 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 Safemath. \u0633\u067e\u0633\u060c \u0645\u0627 \u0628\u0647 \u0628\u0631\u06af\u0647 \u062f\u0648\u0645 \u0628\u0647 \u0633\u0645\u062a \u0631\u0627\u0633\u062a \u0628\u0647 \u0646\u0627\u0645 &#8220;Run&#8221; \u0645\u06cc\u200c\u0631\u0648\u06cc\u0645 \u0648 \u0631\u0648\u06cc \u00abDeploy\u00bb \u06a9\u0644\u06cc\u06a9 \u06a9\u0646\u06cc\u062f. \u06cc\u06a9 \u067e\u0646\u062c\u0631\u0647 Metamask \u0638\u0627\u0647\u0631 \u062e\u0648\u0627\u0647\u062f \u0634\u062f \u0627\u0632 \u0645\u0627 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0645\u06cc\u200c\u06a9\u0646\u062f \u062a\u0627 \u0645\u0639\u0627\u0645\u0644\u0647 \u0631\u0627 \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u06cc\u0645 \u0648 \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a \u0622\u0646 \u0631\u0627 \u062a\u0627\u06cc\u06cc\u062f \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n<p style=\"text-align: justify;\">\u062a\u0628\u0631\u06cc\u06a9! \u0634\u0645\u0627 \u0627\u0648\u0644\u06cc\u0646 \u062a\u0648\u06a9\u0646 ERC20 \u062e\u0648\u062f \u0631\u0627 \u0628\u0647 \u062d\u0631\u0641\u0647\u200c\u0627\u06cc\u200c\u062a\u0631\u06cc\u0646 \u0634\u06cc\u0648\u0647\u060c \u0628\u062f\u0648\u0646 \u06a9\u0645\u06a9 \u0634\u062e\u0635 \u062f\u06cc\u06af\u0631\u06cc \u0648 \u062a\u0648\u0633\u0637 \u062e\u0648\u062f\u062a\u0627\u0646 \u0628\u0647 \u062a\u0646\u0647\u0627\u06cc\u06cc \u062c\u0627\u06cc\u06af\u0630\u0627\u0631\u06cc \u06a9\u0631\u062f\u06cc\u062f. \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u06af\u0641\u062a\u0647 \u0628\u0648\u062f\u06cc\u0645 \u062a\u0648\u06a9\u0646\u200c\u0647\u0627 \u062d\u062c\u0645 \u0628\u0627\u0644\u0627\u06cc\u06cc \u0646\u062f\u0627\u0631\u0646\u062f\u060c \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u06a9\u0627\u0645\u0644\u0627 \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0647\u0633\u062a\u0646\u062f\u060c \u0628\u0627 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u200c\u0647\u0627\u06cc ERC20 \u0633\u0627\u0632\u06af\u0627\u0631 \u0647\u0633\u062a\u0646\u062f \u0648 \u0627\u0632 \u0647\u0645\u0647 \u0645\u0647\u0645\u200c\u062a\u0631 \u0627\u0645\u0646 \u0647\u0633\u062a\u0646\u062f. \u062d\u0627\u0644\u0627 \u062a\u0648\u06a9\u0646 \u0634\u0645\u0627 \u0622\u0645\u0627\u062f\u0647 \u062a\u0627\u06cc\u06cc\u062f \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0627\u0633\u062a.<\/p>\n<p style=\"text-align: justify;\">\u062d\u0627\u0644 \u06a9\u0647 \u0628\u0627 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u0622\u0634\u0646\u0627 \u0634\u062f\u06cc\u062f \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u0645\u06cc\u200c\u0634\u0648\u062f \u0627\u0632 \u062f\u06cc\u06af\u0631 \u062e\u062f\u0645\u0627\u062a <a href=\"https:\/\/avalpardakht.com\/\">\u0633\u0627\u06cc\u062a \u0627\u0648\u0644 \u067e\u0631\u062f\u0627\u062e\u062a<\/a> \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0645\u0634\u062e\u0635\u0627\u062a \u0631\u0645\u0632 ERC20 \u0628\u0647 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u062f\u0641\u0627\u0639\u06cc \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc Ethereum \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0637\u0648\u0631 \u062f\u0642\u06cc\u0642 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u0631\u0627 \u062a\u0648\u0636\u06cc\u062d \u0645\u06cc\u200c\u062f\u0647\u062f<\/p>\n","protected":false},"author":6,"featured_media":16506,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-16505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-9"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u062f\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0644\u0627\u06a9\u0686\u06cc\u0646 \u0627\u062a\u0631\u06cc\u0648\u0645 - \u0627\u0648\u0644 \u067e\u0631\u062f\u0627\u062e\u062a<\/title>\n<meta name=\"description\" content=\"\u0645\u0634\u062e\u0635\u0627\u062a \u0631\u0645\u0632 ERC20 \u0628\u0647 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u062f\u0641\u0627\u0639\u06cc \u062a\u0648\u06a9\u0646\u200c\u0647\u0627\u06cc Ethereum \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0637\u0648\u0631 \u062f\u0642\u06cc\u0642 \u0622\u0645\u0648\u0632\u0634 \u0633\u0627\u062e\u062a \u062a\u0648\u06a9\u0646 ERC20 \u0631\u0627 \u062a\u0648\u0636\u06cc\u062d \u0645\u06cc\u200c\u062f\u0647\u062f\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/avalpardakht.com\/blog\/create-an-erc20-token\/\" \/>\n<meta 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