ethereum - 警告 : Using contract member "balance" inherited from the address type is deprecated. 坚固性

Question

Warning: Using contract member "balance" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).balance" instead.

我使用 Remix 编辑器在 Solidity 中收到此警告。

这是代码块:

function getSummary() public view returns(
    uint, uint, uint, uint, address
){
    return (
        minimumContribution,
        this.balance, // This is the warning line.
        requests.length,
        approversCount,
        manager
    );
}

我尝试按照警告的建议进行操作:

function getSummary() public view returns(
    uint, uint, uint, uint, address
){
    return (
        minimumContribution,
        address(contract).balance,
        requests.length,
        approversCount,
        manager
    );
}

但这不起作用。

Answer 1

balance 是 address 类型的属性，而不是来自合约。将其更改为address(this).balance。

function getSummary() public view returns(
    uint, uint, uint, uint, address
){
    return (
        minimumContribution,
        address(this).balance,
        requests.length,
        approversCount,
        manager
    );
}