类型合约活动不能隐式转换为预期类型地址

Question

在尝试创建和存储新创建的 Solidity 合约的地址时：

address newCampaign = new Campaign();

我收到以下错误：

Type contract Campaign is not implicitly convertible to expected type address

Answer 1

地址需要显式转换：

address newCampaign = address(new Campaign());