c获取时间
1. 获取时间戳gettimeofday(struct timeval*tv,struct timezone *tz)2. time(time_t *t)获取日期
#include <stdio.h>
#include <sys/time.h>
#include <unistd.h>
#include <time.h>
int main() {
// timestamp
struct timeval timeval;
gettimeofday(&timeval, NULL);
printf("millsec:%d\n", timeval.tv_sec * 1000 + timeval.tv_usec / 1000);
sleep(1);
gettimeofday(&timeval, NULL);
printf("millsec:%d\n", timeval.tv_sec * 1000 + timeval.tv_usec / 1000);
// date
time_tseconds;
struct tm *date;
time(&seconds);
date = gmtime(&seconds);
printf("sec:%d\n", date->tm_sec);
printf("min:%d\n", date->tm_min);
printf("hour:%d\n", date->tm_hour);
printf("day:%d\n", date->tm_mday);
printf("month:%d\n", date->tm_mon);
printf("year:%d\n", date->tm_year + 1900);
return 0;
}
文档来源：51CTO技术博客https://blog.51cto.com/u_2498536/3304160
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