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云代码 - c++代码库

注册系统

2022-01-03 作者： 高嘉易举报

[c++]代码库

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#include "iostream"
#include "fstream"
#include "string"
#include <conio.h>
using namespace std;
 
#define SIZE 100//最大用户容量
int scount = 0;//用作储存当前已注册用户数
 
//用户类
class User
{
private:
    string phone;//电话
    string password;//密码
public:
    User() {};
    void Registers();//注册
    void Login();//登录
    void save();//保存
    void read();//读取
}us;
 
User user[SIZE];
 
//保存
void User::save()
{
    ofstream ofile;
    ofile.open("user.txt", ios::out);
 
    for (int i = 0; i < scount; i++)
    {
        ofile << user[i].phone << endl;
        ofile << user[i].password << endl;
    }
    ofile.close();
}
 
//读取
void User::read()
{
    ifstream ifile;
    ifile.open("user.txt", ios::in);
 
    scount = 0;
 
    if (!ifile.is_open())
    {
        //cout << "文件打开失败！" << endl;
        return;
    }
 
    for (int i = 0; !ifile.eof(); i++)
    {
        ifile >> user[i].phone;
        ifile >> user[i].password;
        scount++;
    }
    scount--;
    ifile.close();
}
 
//注册
void User::Registers()
{
    us.read();//读取已储存用户数据
    string ph;//电话
    string pw1;//密码1
    string pw2;//密码2
    for (int i = scount; i < SIZE; i++)
    {
    here:
        cout << "\t\t\t【系统提示】请输入手机号：";
        cin >> ph;
        //判断新输入的用户信息是否已存在（如果已存在则重新输入）
        for (int i = 0; i < scount; i++)
        {
            if (ph == user[i].phone)
            {
                cout << "\t\t\t【系统提示】用户已存在！" << endl;
                goto here;
            }
        }
        user[i].phone = ph;
 
        int chose = -1;
        cout << endl;
        cout << "\t\t\t┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n";
        cout << "\t\t\t┃       1.显示密码     2.隐藏密码      ┃\t\n";
        cout << "\t\t\t┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n";
        cout << "\t\t\t【系统提示】请输入你的选择：";
        cin >> chose;
        if (chose > 2 || chose < -1)
        {
            cout << "\t\t\t【系统提示】输入格式错误，请重新输入：";
            cin >> chose;
        }
 
        string pword;
        char ch, passwords0[20];
        int x = 0;
        string pword1;
        char ch1, passwords1[20];
        int x1 = 0;
        switch (chose)
        {
        case 1:
            cout << "\t\t\t【系统提示】请输入密码：";
            cin >> pword;
            user[i].password = pword;
            cout << "\t\t\t【系统提示】请再次密码：";
            cin >> pword1;
            if (pword1 != user[i].password)
            {
                cout << "\t\t\t【系统提示】密码不一致！" << endl;
                goto here;
            }
            else
            {
                scount++;//已注册用户加1
                cout << "\t\t\t【系统提示】注册成功！" << endl;
                us.save();//保存用户数据
            }
            break;
        case 2:
            cout << "\t\t\t【系统提示】请输入密码：";
            while ((ch = _getch()) != '\r' && x <= 20)
            {
                if (ch == '\b')
                {
                    if (x > 0)
                    {
                        x--;
                        cout << "\b \b";//密码支持退格的实现
                    }
                    else
                        putchar(7);
                }
                else
                {
                    passwords0[x++] = ch;
                    printf("*");
                }
            }
            passwords0[x] = '\0';
            cout << endl;
            user[i].password = passwords0;
 
            cout << "\t\t\t【系统提示】请再次密码：";
            while ((ch1 = _getch()) != '\r' && x1 <= 20)
            {
                if (ch1 == '\b')
                {
                    if (x1 > 0)
                    {
                        x1--;
                        cout << "\b \b";//密码支持退格的实现
                    }
                    else
                        putchar(7);
                }
                else
                {
                    passwords1[x1++] = ch1;
                    printf("*");
                }
            }
            passwords1[x1] = '\0';
            cout << endl;
            //比较两次输入的密码是否统一（如果不统一则重新输入）
            if (passwords1 != user[i].password)
            {
                cout << "\t\t\t【系统提示】密码不一致！" << endl;
                goto here;
            }
            else
            {
                scount++;//已注册用户加1
                cout << "\t\t\t【系统提示】注册成功！" << endl;
                us.save();//保存用户数据
            }
            break;
        }
        char choice;
        cout << "\t\t\t【系统提示】是否继续注册(Y/N)？ :";
        while (1)
        {
            cin >> choice;
            if (choice == 'y' || choice == 'Y' || choice == 'n' || choice == 'N')
                break;
            else
                cout << "\t\t\t【系统提示】输入格式错误，请重新输入： ";
        }
        if (choice == 'n' || choice == 'N')
        {
            break;
        }
    }
}
 
//登录
void User::Login()
{
    us.read();//读取已储存用户数据
    string ph;//电话
    string pw;//密码
    int time = 0;//统计比较次数
here:
    cout << "\t\t\t【系统提示】请输入手机号：";
    cin >> ph;
    int chose = -1;
    cout << endl;
    cout << "\t\t\t┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n";
    cout << "\t\t\t┃       1.显示密码     2.隐藏密码      ┃\t\n";
    cout << "\t\t\t┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n";
    cout << "\t\t\t【系统提示】请输入你的选择：";
    cin >> chose;
    if (chose > 2 || chose < -1)
    {
        cout << "\t\t\t【系统提示】输入格式错误，请重新输入：";
        cin >> chose;
    }
 
    string pword;
    char ch, passwords0[20];
    int x = 0;
    switch (chose)
    {
    case 1:
        cout << "\t\t\t【系统提示】请输入密码：";
        cin >> pword;
        for (int i = 0; i < scount; i++)
        {
            if (ph == user[i].phone && pword == user[i].password)
            {
                time++;
                //cout << "\t\t\t【系统提示】登录成功！" << endl;
            }
        }
        if (time == 0)
        {
            cout << "\t\t\t【系统提示】手机号或密码错误！" << endl;
            goto here;
        }
        break;
    case 2:
        cout << "\t\t\t【系统提示】请输入密码：";
        while ((ch = _getch()) != '\r' && x <= 20)
        {
            if (ch == '\b')
            {
                if (x > 0)
                {
                    x--;
                    cout << "\b \b";//密码支持退格的实现
                }
                else
                    putchar(7);
            }
            else
            {
                passwords0[x++] = ch;
                printf("*");
            }
        }
        passwords0[x] = '\0';
        cout << endl;
        //依次比较已储存信息，比较是否匹配（如不匹配则提示错误）
        for (int i = 0; i < scount; i++)
        {
            if (ph == user[i].phone && passwords0 == user[i].password)
            {
                time++;
                cout << "\t\t\t【系统提示】登录成功！" << endl;
            }
        }
        if (time == 0)
        {
            cout << "\t\t\t【系统提示】手机号或密码错误！" << endl;
            goto here;
        }
        break;
    }
}
 
int main()
{
    User user;
    int chose = -1;
    cout << endl;
    cout << "\t\t\t┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n";
    cout << "\t\t\t┃       1.注    册     2.登    录      ┃\t\n";
    cout << "\t\t\t┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n";
    cout << "\t\t\t【系统提示】请输入你的选择：";
    cin >> chose;
    if (chose > 2 || chose < -1)
    {
        cout << "\t\t\t【系统提示】输入格式错误，请重新输入：";
        cin >> chose;
    }
    switch (chose)
    {
    case 1:user.Registers(); break;
    case 2:user.Login(); break;
    }
}

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