使用c编写猜数字小游戏

void func_guess_number(){
    int guess, magic, ret, counter;
    counter = 0;
    srand(time(NULL));
    magic = rand()%100+1;
    printf("generate magic is %d.\n", magic);

    do{
        printf("Please input a number: \n");
        ret = scanf("%d", &guess);  // 如果输入的是字符就让他继续输入
        if (ret != 1){
            while (getchar() != '\n'){;}
            printf("please input a digital number\n");
            continue;
        }

        counter++;
        if (magic > guess){
            printf("Wrong, too low.\n");
        }
        else if (magic < guess){
            printf("Wrong, too high.\n");
        }
        else{
            printf("guess right.\n");
        }
        fflush(stdin);
    } while (magic != guess);

    printf("guess times is %d.\n", counter);
}