C语言 用do—while循环编写门禁程序

Question

用do…while语句实现输入密码并打开门禁的控制程序，假定正确密码设定为6868。如果键盘输入的密码错误, 输出Sorry, please again!, 密码正确, 输出You are welcome!的信息, 修改为如果键盘输入的密码错误,输出 Sorry, please again!; 如果出现3次密码输入错误,输出显示You are error, Bye!,程序结束; 输入的密码正确,输出You are welcome! 的信息, 程序结束。画出流程图并编写程序。

Answer 1

#include <
stdio.h>
 
int main() {int password;
int count = 0;
 
    do {printf("
Please enter the password: "
);
scanf("
%d"
, &
password);
 
        if (password != 6868) {printf("
Sorry, please again!
"
);
count++;
} else {printf("
You are welcome!
"
);
break;
} 
        if (count == 3) {printf("
You are error, Bye!
"
);
break;
}} while (1);
 
    return 0;
}

Please enter the password: 1234Sorry, please again!Please enter the password: 2323Sorry, please again!Please enter the password: 5555Sorry, please again!You are error, Bye!

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