C++密码输入（三次机会）

C++密码输入（三次机会）

---

#include <iostream>
#include <cstring>
#include <stdio.h>
#include <conio.h>

using namespace std;

bool CheckPassWord(string password)/*以"*"输入密码，三次机会*/
{
    bool judge = false;
    int i = 0;
    int times = 1;
    string s;
    char ch;
    char pw[50];
    while(times <= 3)
    {
        i = 0;
        while((ch = _getch()) != '\r')
        {
            if(ch == '\b' && i > 0)//退格
            {
                printf("\b \b");
                i--;
            }
            else
            {
                pw[i++] = ch;
                cout << '*';
            }
        }
        pw[i] = '\0';
        cout << endl;
        if(password.compare(pw) != 0)
        {
            if(times == 3)
                cout << "密码错误，退出！" << endl << endl;
            else
                cout << "密码错误，剩余" << (3-times) << "次机会：";
            times++;
        }
        else
        {
            cout << "密码正确！" << endl << endl;
            judge = true;
            return judge;
        }
    }
    if(times == 4)
        return judge;
    return judge;
}

int main()
{
    string password = "luo123"; //原始密码
    cout << "输入6位查询密码（luo123）：";
    if(CheckPassWord(password)!=true)
        return 0;
    return 1;
}