SALTY 例 学习

 pragma solidity ^0.4.22;

    
  
    
 contract ABC {
    
    uint _a;
    
    bool b = true;
    
    bool c = false;
    
    string d = "hello";
    
    
    
    function Mul(uint a,uint b) public view returns (uint){
    
       return a*b; 
    
    }
    
    
    
    function Set(uint a) public  returns(uint){
    
    _a = a;
    
    }
    
  
    
    function Get() public view returns(uint){
    
    return _a;
    
    }