类型地址不能隐式转换为预期类型地址 payable

Question

我正在学习 CryptoZombies Solidity 教程，我遇到了这样的问题：

Type address is not implicitly convertible to expected type address payable.

代码如下：

function withdraw() external onlyOwner {
        address payable _owner = address(uint160(owner()));
        _owner.transfer(address(this).balance);
    }

我使用 VSCode 和 Solidity 扩展。 IDE 以红色突出显示此行：

address payable _owner = address(uint160(owner()));

并显示上述错误。我应该怎么做才能避免这个错误？

Answer 1

您可以使用 payable() 类型转换函数将 address 的类型更改为 address payable。

// assuming `owner()` returns an `address`
// it's redundant to convert it to `uint160` and then back to `address`
address payable _owner = payable(owner());

类型地址不能隐式转换为预期类型地址 payable

Type address is not implicitly convertible to expected type address payable

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