program.cs

来自「csharp课本的源代码」· CS 代码 · 共 48 行

using System;
using System.Collections.Generic;
using System.Text;

namespace SwitchExample
{
    class Program
    {
        static void Main()
        {
            Console.Write("请输入成绩：");
            //从键盘接收一行字符
            string str = Console.ReadLine();
            //转换为整型
            int i = Int32.Parse(str.Trim());
            if (i > 100 || i < 0)
            {
                Console.WriteLine("成绩不在-100范围内");
            }
            else
            {
                switch (i / 10)
                {
                    case 10:
                        Console.Write("满分，");
                        goto case 9;
                    case 9:
                        Console.WriteLine("优秀");
                        break;
                    case 8:
                    case 7:
                        Console.WriteLine("良好");
                        break;
                    case 6:
                        Console.WriteLine("及格");
                        break;
                    default:
                        Console.WriteLine("不及格");
                        break;
                }
            }
            //按回车键结束
            Console.ReadLine();

        }
    }
}