实施货代合同

Question

我正在使用此代码在我的合同中实现转发器。

contract Forward {

  address public destinationAddress;
  event LogForwarded(address indexed sender, uint amount);
  event LogFlushed(address indexed sender, uint amount);

  constructor() public {
    destinationAddress = msg.sender;
  }

  function() payable public {
    emit LogForwarded(msg.sender, msg.value);
    destinationAddress.transfer(msg.value);
  }

  function flush() public {
    emit LogFlushed(msg.sender, address(this).balance);
    destinationAddress.transfer(address(this).balance);
  }

}

但是它显示了一些错误，因为我使用的是Compiler0.6.0，这段代码是0.4.23，我无法将它转换为最新版本。有人能帮我吗？

以下是错误的预览：

Answer 1

把address public destinationAddress;改成address payable public destinationAddress;对我很有帮助。