Question

我正在尝试使用一个程序，该程序使用JavaScript VM环境在remix ide上将测试醚从一个帐户转移到另一个帐户。我看不到资金转入受益人帐户。

我也输入了诊断代码，该代码可打印合同的当前余额，但始终显示0。

pragma solidity <=0.5.7;
contract MultiSigWallet{
    address payable private owner;
    address payable private  beneficiary;
    uint private minApprovers ;
    uint private currentApprovals;
    mapping(address => bool) approvedBy;
    mapping(address =>bool) isApprover;
    uint public contractBalance;

    constructor  (address payable _beneficiary, address [] memory  _approvers, int32 _minApprovers) public payable{
        require(_approvers.length > 0 && _minApprovers > 0,"At least one approver is required!");
        require(_approvers.length >= minApprovers,"Number of minimum approvers cannot be more than total approvers count");
        owner   = msg.sender;
        beneficiary = _beneficiary;
        for(uint i = 0;i<_approvers.length;i++){
            isApprover[_approvers[i]]= true;
        }

    }

    function approve () public{
        require(isApprover[msg.sender],"Not an Approver");
        if(!approvedBy[msg.sender]){
         approvedBy[msg.sender] = true;
         currentApprovals++;
        }
        if(currentApprovals== minApprovers){
            beneficiary.send(address(this).balance);
            selfdestruct(owner);
        }
    }

    function getContractBalance () public payable returns( uint){
       contractBalance =  address(this).balance;
    }
    function reject() public {
        require(isApprover[msg.sender],"Not an approver!");
        selfdestruct(owner);
    }


}

如果我提供的收款人地址为a1，批准者列表为a2，a3，并且我通过在值字段中放置10个以太币来调用a4的构造函数，那么我可以看到a4余额减少了10个以太币。

接下来，在从帐户a2，a3批准后，我预计a1的余额将增加10个以太币，而合同的余额将变为0。

但是我看不到a1余额有变化，合同余额始终为0。

有人可以解释我做错了什么，或者我的理解是否有空白？

Answer 1

您可能想在构造函数中执行类似minApprovers = _minApprovers的操作。否则，minApprovers始终为0，并且您的==检查将始终失败，因为第一次成功调用approve将使currentApprovals == 1。

固态代码在Javascript VM环境中未传输以太币

1 个答案: