#include 有什么用

来源：学生作业帮编辑：拍题作业网作业帮分类：综合作业时间：2024/04/27 22:40:58

#include 有什么用

一般情况下提问,多少加点悬赏分,很快就有人回答了.我以前问题从不给分,但后来发现只要给点分就可以得到答案,不一定要给分,但是分就像货币,促进我们回答、问问题的循环.尤其是问到专业的问题.
头文件
定义了两个宏：
NULL
CLOCKS_PER_SEC
四个类型：
size_t
clock_t
time_t
struct tm
和九个函数：
clock_t clock(void);
double difftime(time_t time1,time_t time0);
time_t mktime(struct tm *timeptr);
time_t time(time_t *timer);
char *asctime(const struct tm *timeptr);
char *ctime(const time_t *timer);
struct tm *gmtime(const time_t *timer);
struct tm *localtime(const time_t *timer);
size_t strftime(char * restrict s,size_t maxsize,const char * restrict format,const struct tm * restrict timeptr);

#include 有什么用 include in和include有什么区别? #include 和#include 和#include 是什么意思,有什么作用. include included including有什么区别怎么用 include 和contain有什么区别 including included include includes 有什么搭配? contain与include有什么区别? include与contain有什么区别 include和involve有什么区别 include 和involve有什么区别,举例哦 include,contain,involve有什么区别?拜托了各位谢谢 include including .contain.containing四个词有什么区别?