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solidity 合约开发测试2--部署自己的代币合约

solidity 合约开发测试2--部署自己的代币合约

作者: 精神病患者link常 | 来源:发表于2023-08-14 12:38 被阅读0次

    发布自己的代币到BSC测试链

    • 错误一:Gas estimation failed X nt Gas estimation errored with the following message (see below). The transaction execution will likely fail. Do you want to force sending? Returned error: ["jsonrpc"."2.0" "error" "invalid opcode: opcode 0x5f not defined" "id" 5500127351776497}
      因为版本采用的0.8.21,改为0.8.19
    该编译器将默认目标 EVM 版本切换为 Shanghai,
    这意味着生成的字节码将包含 PUSH0 操作码。
    如果您打算部署在主网以外的链上,
    例如可能尚不支持 PUSH0 的 L2 链,请务必选择适当的 EVM 版本,
    否则合约部署将失败
    
    • 错误二:
      creation of Standard_Token errored: Returned error: {"jsonrpc":"2.0","error":"[ethjs-query] while formatting outputs from RPC '{\"value\":{\"code\":-32603,\"data\":{\"code\":-32000,\"message\":\"transaction underpriced\"}}}'","id":8421776024947773}
      预估的gas太低了,弹出的小狐狸点击建议的网站,选择高级,设置5起步
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.19;
    
    interface Token {
    
        /// @param _owner The address from which the balance will be retrieved
        /// @return balance the balance
        function balanceOf(address _owner) external view returns (uint256 balance);
    
        /// @notice send `_value` token to `_to` from `msg.sender`
        /// @param _to The address of the recipient
        /// @param _value The amount of token to be transferred
        /// @return success Whether the transfer was successful or not
        function transfer(address _to, uint256 _value)  external returns (bool success);
    
        /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
        /// @param _from The address of the sender
        /// @param _to The address of the recipient
        /// @param _value The amount of token to be transferred
        /// @return success Whether the transfer was successful or not
        function transferFrom(address _from, address _to, uint256 _value) external returns (bool success);
    
        /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
        /// @param _spender The address of the account able to transfer the tokens
        /// @param _value The amount of wei to be approved for transfer
        /// @return success Whether the approval was successful or not
        function approve(address _spender  , uint256 _value) external returns (bool success);
    
        /// @param _owner The address of the account owning tokens
        /// @param _spender The address of the account able to transfer the tokens
        /// @return remaining Amount of remaining tokens allowed to spent
        function allowance(address _owner, address _spender) external view returns (uint256 remaining);
    
        event Transfer(address indexed _from, address indexed _to, uint256 _value);
        event Approval(address indexed _owner, address indexed _spender, uint256 _value);
    }
    
    contract Standard_Token is Token {
        uint256 constant private MAX_UINT256 = 2**256 - 1;
        mapping (address => uint256) public balances;
        mapping (address => mapping (address => uint256)) public allowed;
        uint256 public totalSupply;
        /*
        NOTE:
        The following variables are OPTIONAL vanities. One does not have to include them.
        They allow one to customise the token contract & in no way influences the core functionality.
        Some wallets/interfaces might not even bother to look at this information.
        */
        string public name;                   //fancy name: eg Simon Bucks
        uint8 public decimals;                //How many decimals to show.
        string public symbol;                 //An identifier: eg SBX
    
        constructor() {
            balances[msg.sender] = 1000 * 10**18;               // Give the creator all initial tokens
            totalSupply = 1000 * 10**18;                        // Update total supply
            name = "Custom Coin";                                   // Set the name for display purposes
            decimals = 18;                            // Amount of decimals for display purposes
            symbol = "CCN";                               // Set the symbol for display purposes
        }
    
        function transfer(address _to, uint256 _value) public override returns (bool success) {
            require(balances[msg.sender] >= _value, "token balance is lower than the value requested");
            balances[msg.sender] -= _value;
            balances[_to] += _value;
            emit Transfer(msg.sender, _to, _value); //solhint-disable-line indent, no-unused-vars
            return true;
        }
    
        function transferFrom(address _from, address _to, uint256 _value) public override returns (bool success) {
            uint256 allowanceValue = allowed[_from][msg.sender];
            require(balances[_from] >= _value && allowanceValue >= _value, "token balance or allowance is lower than amount requested");
            balances[_to] += _value;
            balances[_from] -= _value;
            if (allowanceValue < MAX_UINT256) {
                allowed[_from][msg.sender] -= _value;
            }
            emit Transfer(_from, _to, _value); //solhint-disable-line indent, no-unused-vars
            return true;
        }
    
        function balanceOf(address _owner) public override view returns (uint256 balance) {
            return balances[_owner];
        }
    
        function approve(address _spender, uint256 _value) public override returns (bool success) {
            allowed[msg.sender][_spender] = _value;
            emit Approval(msg.sender, _spender, _value); //solhint-disable-line indent, no-unused-vars
            return true;
        }
    
        function allowance(address _owner, address _spender) public override view returns (uint256 remaining) {
            return allowed[_owner][_spender];
        }
    }
    

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