实现键盘输入口令，口令用*号掩盖

来源：互联网发布：实况足球球员数据编辑：程序博客网时间：2024/04/29 01:17

#include <stdio.h>
#include <conio.h>
#include <string.h>
#define BACKSPACE 8
char *get_password(const char *prompt) {
   static char buffer[128]; int i = 0; char letter = NULL;
   printf(prompt);
   while ((i < 127) && (letter != '/r')) {
       letter = getch();
       if (letter == BACKSPACE){
           if (i > 0) {
              buffer[--i] = NULL; // Erase previous *
              putchar(BACKSPACE); putchar(' '); putchar(BACKSPACE);
            }
           else putchar(7); // BELL
      }
       else if (letter != '/r') {
           buffer[i++] = letter;    putchar('*');
       }
     }
   buffer[i] = NULL;
   return (buffer);
}
void main(void) {
   char *password;
   password = get_password("请输入您的口令(Enter Password): ");
   if (strcmp(password, "12345"))printf("/n错误的口令(Password Incorrect)/n");
   else printf("/n口令正确(Password OK)/n");
}