学步园

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

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("请输入学生成绩：");
            int score = int.Parse(Console.ReadLine());

             if (score > 90)
             {
                 Console.WriteLine("该学生优秀");
             }
             else if (score > 80)
             {
                 Console.WriteLine("该学生优秀");
             }
             else if (score > 70)
             {

                 Console.WriteLine("该学生中等");
             }
             else if (score >= 60)
             {
                 Console.WriteLine("该学生及格");
             }
             else
             {
                 Console.WriteLine("该学生不及格");
             }
             /*
             int temp = score/10;
             switch (temp)
             {
                 case 9:
                     Console.WriteLine("该学生优秀");
                     break;
                 case 8:
                     Console.WriteLine("该学生良好");
                     break;
                 case 7:
                     Console.WriteLine("该学生中等");
                     break;
                 case 6:
                     Console.WriteLine("该学生及格");
                     break;
                 default:
                     Console.WriteLine("不及格");
                     break;
             }
             */
            Console.ReadLine();
        }
    }
}