.net（从控制台读入两个数，实现加减乘除）

[csharp] 
using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
 
namespace TestClaclulate 
{ 
    class Program 
    { 
        static void Main(string[] args) 
        { 
            // 1，定义double变量 
            double numberOne; 
            double numberTwo; 
 
            // 2，从控制台获得两个数 
            try 
            { 
                numberOne = double.Parse(Console.ReadLine()); 
                numberTwo = double.Parse(Console.ReadLine()); 
 
                // 3，输出这两个数的加，减，乘，除 的结果 
                Console.WriteLine(numberOne + " + " + numberTwo + " = " + (numberOne + numberTwo)); 
                Console.WriteLine(numberOne + " - " + numberTwo + " = " + (numberOne - numberTwo)); 
                Console.WriteLine(numberOne + " * " + numberTwo + " = " + (numberOne * numberTwo)); 
                Console.WriteLine(numberOne + " / " + numberTwo + " = " + (numberOne / numberTwo)); 
            } 
            catch (System.FormatException e) 
            { 
                Console.WriteLine(e.Message); 
            } 
 
            // 
            Console.ReadKey(); 
        } 
    } 
} 
作者：haifengzhilian