类：
using System;
using System.Collections.Generic;
using System.Text;

namespace class_student2
{
    class student
    {
        private string sno;
        public string  _sno
        {
            set  {sno = value; }
            get { return sno; }
      
        }
        private string name;
        public string _name
        {
            set { name = value; }
            get { return name; }
        }
        private char sex;
        public char _sex
        {
            set
            {
                if (value == '男' || value == '女')
                    sex = value;
                else
                    Console.Write("请输入正确性别的格式！");
            }
            get { return sex; }
        }
    private int age;
        public int  _age
        {
            set{
        if(value>=15&&value<=20)
           age=value;
        else
            Console.Write("请输入正确的年龄！");
        }
            get{return age;}
        }
        private string email;
        public string _email
        {
   set
   {
    if( value=="")
        email = this.sno + "@
    else
        email = value + "@
    }
            get { return email;}
    }
        public void show()
        {
            Console.Write("学号:{0}\n姓名:{1}\n性别:{2}\n年龄:{3}\nE-mail:{4}",this.sno,this.name,this.sex,this.age,this.email);
        }
    }
}

主函数：
using System;
using System.Collections.Generic;
using System.Text;

namespace class_student2
{
    class student2
    {
        static void Main(string[] args)
        {
        student st1=new student();
       Console.Write("是否进行学生信息的输入y/n\n");
        char r;
           r= Convert.ToChar( Console.Read());
           if (r == 'y')
           {
               Console.Write("请输入学号：");
               st1._sno = Console.ReadLine();
               Console.Write("请输入学生姓名：");
               st1._name = Console.ReadLine();
               Console.Write("请输入性别：");
               st1._sex =Convert.ToChar( Console.Read());
               Console.Write("请输入年龄：");
               st1._age = Console.Read();
               Console.Write("请输入E-mail:");
               st1._email = Console.ReadLine();
           Console.Write("信息输入完毕是否进行显示？y/n");
           char f;
          f = Convert.ToChar( Console.Read());
               if (f == 'y')
                  st1.show();
               else
                  Console.Write("感谢您的使用！");
      Console.ReadLine();
           }
           else
           {
               Console.Write("感谢您的使用！");
               Console.ReadLine();
           }

        }
    }
}
各位大仙请问这程序如何修改才能通过啊。我再运行总是没有办法输入数据！！！！！

Console.Write("是否进行学生信息的输入y/n\n");//改：Console.WriteLine(...);
        char r;
           r= Convert.ToChar( Console.Read());//改里面Console.ReadLine();
           if (r == 'y')
           {
               Console.Write("请输入学号：");
               st1._sno = Console.ReadLine();
               Console.Write("请输入学生姓名：");
               st1._name = Console.ReadLine();
               Console.Write("请输入性别：");
               st1._sex =Convert.ToChar( Console.Read());//里面改：Console.ReadLine();
Console.Write("请输入年龄：");
               st1._age = Console.Read();//要转化为整形，所以改：int.Parse(Console.Read());
Console.Write("请输入E-mail:");
               st1._email = Console.ReadLine();



其他有需要的地方也可以照样改改，我在我电脑上试着可以。

在主函数中的如下（已修改）：
             student st1=new student();
             Console.Write("是否进行学生信息的输入y/n\n");
             char r;
             r= Convert.ToChar( Console.ReadLine());//修改1
             if (r == 'y')
            {
               Console.Write("请输入学号：");
               st1._sno = Console.ReadLine(); //修改2
               Console.Write("请输入学生姓名：");
               st1._name = Console.ReadLine();
               Console.Write("请输入性别：");
               st1._sex =Convert.ToChar( Console.ReadLine());//修改3
               Console.Write("请输入年龄：");
               st1._age =Convert .ToInt32 ( Console.ReadLine());//修改4
               Console.Write("请输入E-mail:");
               st1._email = Console.ReadLine();
               Console.Write("信息输入完毕是否进行显示？y/n");
               char f;
               f = Convert.ToChar( Console.ReadLine());
               if (f == 'y')
                     st1.show();
                else
                     Console.WriteLine("感谢您的使用！");//不用在后面添加Console.Readline(),在主函数最后面添加就可以显示
                 
            }
            else
            {
                   Console.WriteLine("感谢您的使用！");
                  
            }

           Console.ReadKey();//修改5

[ 本帖最后由 ZWYyj 于 2012-9-21 09:30 编辑 ]

st1._age = Console.Read();//要转化为整形，所以改：int.Parse(Console.Read());
这里的那个int.Parse(Console.Read())无法执行，所以我改成convert.toint16(console.readline())型可以运行了！！

谢谢2楼的回复！

程序基本可以运行了！
谢谢3楼的指点！！

个别地方出错误了。可以多看看自己的代码。Read跟ReadLine是不一样的。