solidity智能合约[31]-构造函数

contract  ontractinit{

uint public a ;
//无参数的构造函数
function ontractinit() public{
    a = 100;
}
//带参数的构造函数
  function ontractinit(uint _a,uint _b) public{
    a = _a;
}

uint public a ;
address public owner;


// 将部署者地址存储到owner变量
constructor() public {
   owner = msg.sender;
}

//带参构造函数
constructor(uint _a) public{
    a = _a;
}

pragma solidity ^0.4.23;

contract  ontractinit{
    // function ontractinit() public{
    //     a = 100;
    // }

    //   function ontractinit(uint _a,uint _b) public{
    //     a = _a;
    // }
    uint public a ;
    address public owner;
    constructor(uint _a) public{
        a = _a;
    }
    constructor() public {
        owner = msg.sender;
    }

}