学籍信息管理系统完整代码

string no = Console.ReadLine().Trim();
for (int i = 0; i < lstStudent.Count; i++)
{
if (lstStudent.Count == 0)
{
Console.WriteLine("系统还未添加任何学生信息");
Console.WriteLine("删除成功");
break;
}
if (lstStudent[i].stuNo == no)
{
lstStudent.Remove(lstStudent[i]);
string no = Console.ReadLine().Trim();
for (int i = 0; i < lstStudent.Count; i++)
{
Console.WriteLine("添加成功");
break;
}
case ConsoleKey.D:
lstStudent[i] = item;
Consபைடு நூலகம்le.WriteLine("修改成功！");
break;
Console.Write("学号：");
stu.stuNo = Console.ReadLine().Trim();
Console.Write("姓名：");
{
if (lstStudent.Count == 0)
{
Console.WriteLine("系统还未添加任何学生信息");
}
else
{
Console.Write("请输入要删除的学生的学号：");
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("使用提示(按键-操作)：A-添加 D-删除 C-修改 L-查看");
Console.ForegroundColor = ConsoleColor.Gray;
{
if (lstStudent.Count == 0)
Console.WriteLine("系统还未添加任何学生信息");
else
Console.Write("年龄：");
item.stuAge = short.Parse(Console.ReadLine().Trim());
}
}
break;
}
case ConsoleKey.L:
{
case ConsoleKey.A:
{
//Console.ForegroundColor = ConsoleColor.Red;
Student item = lstStudent[i];
if (item.stuNo == no)
{
Console.Write("年龄：");
stu.stuAge = short.Parse(Console.ReadLine().Trim());
lstStudent.Add(stu);
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace SGMS
{
class Program
{
static void Main(string[] args)
item.stuName = Console.ReadLine().Trim();
Console.Write("性别：");
item.stuSex = char.Parse(Console.ReadLine().Trim());
Console.Write("学号：");
item.stuNo = Console.ReadLine().Trim();
Console.Write("姓名：");
Console.WriteLine("请输入学生相关信息");
//Console.ForegroundColor = ConsoleColor.Gray;
Student stu = new Student();
}
break;
}
case ConsoleKey.C:
{
{
Console.WriteLine("学号\t姓名\t性别\t年龄");
{
List<Student> lstStudent = new List<Student>();
bool flag = true;
while (flag)
{
Console.WriteLine("------------------------------------------------");
Console.WriteLine("------------------------------------------------");
ConsoleKey ck = Console.ReadKey(true).Key;
switch (ck)
}
else
{
Console.Write("请输入要修改的学生的学号：");
}
if (i == lstStudent.Count - 1)
Console.WriteLine("抱歉！系统中没有这个学号");
if (i == lstStudent.Count - 1)
Console.WriteLine("抱歉！系统中没有这个学号");
}
stu.stuName = Console.ReadLine().Trim();
Console.Write("性别：");
stu.stuSex = char.Parse(Console.ReadLine().Trim());