entry.c

C Primer Plus(第五版)中文版源码,I hope it will help you much

/* entry.c -- entry condition loop */
#include <stdio.h>
int main(void)
{
    const int secret_code = 13;
    int code_entered;
    
    printf("To enter the triskaidekaphobia therapy club,\n");
    printf("please enter the secret code number: ");
    scanf("%d", &code_entered);
    while (code_entered != secret_code)
    {
        printf("To enter the triskaidekaphobia therapy club,\n");
        printf("please enter the secret code number: ");
        scanf("%d", &code_entered);
    }
    printf("Congratulations! You are cured!\n");
    
    return 0;
}