小编Que*_*ouf的帖子

为什么我的代码有效？我在声明它之前调用函数generateNumber,并且我没有在文件的开头设置原型,所以通常它不应该工作,是吗？

这是我的代码:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>


int main(int argc, const char * argv[]) {
    int max = 100;
    int min = 1;
    int mysteryNumber = generateNumber(min, max);
    int enteredNumber = min-1;
    do{
        printf("Enter a number !\n");
        scanf("%d", &enteredNumber);
        if (enteredNumber > mysteryNumber) {
            printf("It's less !");
        }else if(enteredNumber < mysteryNumber){
            printf("It's more !");
        }
    }while (enteredNumber != mysteryNumber);
    printf("Congratulations, the mystery number was %d \n", mysteryNumber);
    return 0;
}

int generateNumber(int min, int max){
    srand(time(NULL));
    return (rand() % …