solidity获取时间戳

以下是两种Solidity获取时间戳的方法：

1.使用now关键字获取当前块的时间戳

pragma solidity >=0.4.22 <0.6.0;

contract MyContract {
    uint public timestamp;
    
    function getTimestamp() public {
        timestamp = now;
    }
}

2.在函数中使用block.timestamp获取当前块的时间戳

pragma solidity >=0.4.22 <0.6.0;

contract MyContract {
    uint public timestamp;
    
    function getTimestamp() public {
        timestamp = block.timestamp;
    }
}