using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;//控制文件流
using System.Text;
namespace 简单登录注册系统__20180808
{
class Program
{
static void Main(string[] args)
{
Inter();
Console.ReadKey();
}
//界面
public static void Inter()
{
Console.WriteLine("*********************************");
Console.WriteLine("* 欢迎来到本系统 *");
Console.WriteLine("* 请选择操作 *");
Console.WriteLine("* 1.登录账户 *");
Console.WriteLine("* 2.注册账户 *");
Console.WriteLine("* 3.修改密码 *");
Console.WriteLine("* 4.找回密码 *");
Console.WriteLine("* 5.退出 *");
Console.WriteLine("*********************************");
int n = int.Parse(Console.ReadLine());
switch (n)
{
case 1: Register(); break;
case 2: RegisteredAaccount(); break;
case 3: Console.WriteLine(); break;
case 4: ForgotPassword(); break;
case 5: Quit(); break;
default:
Console.WriteLine("输入错误");
break;
}
}
//登录失败
public static void LogonFailed()
{
Console.WriteLine("*********************************");
Console.WriteLine("* 请选择操作 *");
Console.WriteLine("* 1.重新登录 *");
Console.WriteLine("* 2.注册账户 *");
Console.WriteLine("* 3.找回密码 *");
Console.WriteLine("* 4.退出 *");
Console.WriteLine("*********************************");
for (int i = 0; i < 3; i++)
{
int n = int.Parse(Console.ReadLine());
switch (n)
{
case 1: Register(); break;
case 2: RegisteredAaccount(); break;
case 3: ForgotPassword(); break;
case 4: Quit(); break;
default:
Console.WriteLine("输入错误，请重新输入");
break;
}
if (2-i==0)
{
Quit();
}
Console.WriteLine("您还有{0}次机会",2-i);
}
}
//登录
public static void Register()
{
string[] str = File.ReadAllLines(@"C:\Users\a\Desktop\ZSQ\message.txt");
Console.WriteLine("请出入账号");
string account = Console.ReadLine();
Console.WriteLine("请输入密码");
string password = Console.ReadLine();
for (int i = 1; i < str.Length; i+=2)
{
if (account==str[i-1])
{
if (password==str[i])
{
Console.WriteLine("登录成功");
Inter();
}
}
if (i>=str.Length-2)
{
Console.WriteLine("登录失败");
LogonFailed();
}
}
}
//注册账户
public static void RegisteredAaccount()
{
string[] str = File.ReadAllLines(@"C:\Users\a\Desktop\ZSQ\message.txt");
for (int n = 0; true ; n++)
{
bool bo = false;
Console.WriteLine("请输入账号");
string account = Console.ReadLine();
if (str.Length == 0)
{
File.AppendAllText(@"C:\Users\a\Desktop\ZSQ\message.txt", account);//在原有文本文件上添加
bo = true;
}
else
{
for (int i = 0; i < str.Length; i += 2)
{
if ( account== str[i])
{
Console.WriteLine("该账号已经被注册，请重新输入");
break;
}
if (i == str.Length - 2)
{
File.AppendAllText(@"C:\Users\a\Desktop\ZSQ\message.txt","\n"+ account);//在原有文本文件上添加
bo = true;
break;
}
}
}
if (bo==true)
{
break;
}
}
for (int i = 0; i < 3; i++)
{
Console.WriteLine("请输入密码");
string password = Console.ReadLine();
Console.WriteLine("请再确认密码");
string password1 = Console.ReadLine();
if (password==password1)
{
Console.WriteLine("请输入验证码");
int authCodes = authCode();
Console.WriteLine(authCodes);
int auth = int.Parse(Console.ReadLine());
if (auth==authCodes)
{
File.AppendAllText(@"C:\Users\a\Desktop\ZSQ\message.txt", "\n" + password);//在原有文本文件上添加
Console.WriteLine("注册成功！");
Inter();
}
else
{
Console.WriteLine("注册失败");
RegisteredAaccount();
}
}
else
{
if (2-i==0)
{
Inter();
}
Console.WriteLine("请重新输入密码，还有{0}次机会",2-i);
}
}
}
//修改密码
public static void changePassword()
{
Console.WriteLine("请输入账号");
string count = Console.ReadLine();
for (int i = 0; i < 3; i++)
{
Console.WriteLine("请输入新密码");
string password1 = Console.ReadLine();
Console.WriteLine("请再次输入密码");
string password2 = Console.ReadLine();
if (password1 == password2)
{
Inter();
}
}
}
//找回密码
public static void ForgotPassword()
{
string[] str = File.ReadAllLines(@"C:\Users\a\Desktop\ZSQ\message.txt");
Console.WriteLine("请输入账号");
string account = Console.ReadLine();
for (int i = 0; i < str.Length; i += 2)
{
if (str[i] == account)
{
for (int j = 0; j < 3; j++)
{
Console.WriteLine("请输入密码包含字符串");
string passWorldStr = Console.ReadLine();
if (str[i+1].Contains(passWorldStr))
{
for (int k = 0; k < 3; k++)
{
Console.WriteLine("请输入新密码");
string password = Console.ReadLine();
Console.WriteLine("请再次确认新密码");
string password1 = Console.ReadLine();
if (password==password1)
{
Console.WriteLine("请输入验证码");
int authCodes = authCode();
Console.WriteLine(authCodes);
int auth = int.Parse(Console.ReadLine());
if (auth == authCodes)
{
str[i + 1] = password;
for (int m = 0; m < str.Length; m++)
{
if (m==0)
{
File.WriteAllText(@"C:\Users\a\Desktop\ZSQ\message.txt",str[m]);//在原有文本文件替换
}
else
{
File.AppendAllText(@"C:\Users\a\Desktop\ZSQ\message.txt", "\n" + str[m]);//在原有文本文件上替换
}
}
//File.AppendAllText(@"C:\Users\a\Desktop\ZSQ\message.txt", "\n" + str[i]);//在原有文本文件上添加
//File.AppendAllText(@"C:\Users\a\Desktop\ZSQ\message.txt", "\n" + password);//在原有文本文件上添加
Console.WriteLine("找回成功！");
Inter();
}
else
{
Console.WriteLine("找回密码失败");
RegisteredAaccount();
}
}
}
}
else
{
if (2-j==0)
{
Quit();
}
Console.WriteLine("输入错误，还有{0}次机会",2-j);
}
}
}
}
}
//退出
public static void Quit()
{
Console.WriteLine("退出成功");
Console.ReadKey();
}
//验证码
public static int authCode()
{
Random rand1 = new Random();
int a = rand1.Next(1000,9000);
return a;
}
}
}