第87篇 多重签名智能合约（0.7.5）

Posted 2021-12-13 wonderBlock

本文环境：

          区块链版本：以太坊POA联盟链

          节点版本： geth 1.9.19

          操作系统：windows 64

          合约版本：solidity ^0.7.5

1. 合约源码

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.7.5;
pragma abicoder v2;

contract multiSigWallet{

    address[] public owners;
    uint reqApprovals;

    constructor(address[] memory _owners, uint _reqApprovals){
        uint i;
        owners.push(msg.sender);
        for(i = 0; i < _owners.length; i++){
            owners.push(_owners[i]);
        }
        reqApprovals =  _reqApprovals;
    }

    modifier onlyOwners{
        bool _onlyOwners = false;
        uint i;
        for(i = 0; i < owners.length; i++){
            if(msg.sender == owners[i]){
                _onlyOwners = true;
            }
        }
        require(_onlyOwners);
        _;
    }

    struct Transfer {
        address creat