误差

Question

我正试图为Lottary应用程序创建一份合同，但是我遇到了错误，因为

browser/test.sol:103:9: TypeError:成员“传输”在与参数相关的地址查找后未找到或不可见。users.transfer(地址(此).balance)；

我试图让address[]用户成为地址可支付的[]用户；在https://stackoverflow.com/questions/53499997/solidity-member-transfer-not-found-or-not-visible-after-argument-dependent中提到过，然后它会产生不同的错误。

pragma solidity ^0.4.24;


/*
Lottery is safe under the assumption that miners do not interfere,
no smart contract can hack me (If You can prove me otherwise :D )
*/
contract LotteryFor10{

address[] users; 
mapping(address => bool) participated;
uint256 public constant WAIT_BLOCKS_LIMIT = 3 ;
uint256 public registeredCount ;
uint256 public _registeredLimit ;
uint256 constant REGISTERING_PARTICIPANTS = 1;
uint256 constant REGISTERING_FINISHED = 2;
uint256 constant WAITING_FOR_RANDOMNESS = 3;
uint256 constant SOLVING_LOTERRY = 4;
uint256 constant LOTTERY_SOLVED = 5;
uint256 public waitingStartBlockNumber;
bool public lotterySolved;

constructor(uint256 _limit) public{
    waitingStartBlockNumber = 0;
    registeredCount = 0;//good habit not to rely on defaults if You do 
 not have to
    _registeredLimit = _limit;
}



function () public payable{

    if(getStage(block.number)==REGISTERING_PARTICIPANTS){
        processAddingUser(msg.sender);
    }
    else{ // this else is crutial so we never enter two stages in same 
   call
        if(getStage(block.number)==REGISTERING_FINISHED){
            require(msg.value == 0,"no additional stake allowed");
            waitingStartBlockNumber = block.number;
            emit ClosingList(waitingStartBlockNumber);
        }
        else{
            if(getStage(block.number)==WAITING_FOR_RANDOMNESS){
                    require(msg.value == 0,"no additional stake 
   allowed");

                    revert("To little time passed, wait at least 
  WAIT_BLOCKS_LIMIT ");
            }
            else{
                if(getStage(block.number)==SOLVING_LOTERRY){
                    require(msg.value == 0,"no additional stake 
                    allowed");
                    processSolvingLottery(block.number);
                }
                else{        
                    revert("Lottery Closed ");
                 }
               }
           }
         }
      }


   function getStage(uint256 blockNum) private view returns(uint256) {
    if(registeredCount<_registeredLimit){
        return REGISTERING_PARTICIPANTS;
    }
    else{
        if(waitingStartBlockNumber==0 //start waiting block has been 
                   never set
            || blockNum-waitingStartBlockNumber>=256 //start waiting 
                block has been set long time ago
            ){
            return REGISTERING_FINISHED;
        }
        else
        {
            if(blockNum-waitingStartBlockNumber

Answer 1

替换

users[luckyNumber].transfer(address(this).balance);

使用

payable(users[luckyNumber]).transfer(address(this).balance);