Solidity View(视图)函数

pragma solidity ^0.5.0;
contract Test {
   function getResult() public view returns(uint product, uint sum){
      uint a = 1; // 局部变量
      uint b = 2;
      product = a * b;
      sum = a + b; 
   }
}

0: uint256: product 2
1: uint256: sum 3