C语言：获取当前时间，并转为字符串，这个功能挺常用的，记录一下：

#include
#include

int main()
{
time_t nowtime = time(NULL);
tm *now = localtime(&nowtime);
printf("now: %04d-%02d-%02d %02d:%02d:%02d\nunix time: %ld\n",
now->tm_year+1900, now->tm_mon+1, now->tm_mday,
now->tm_hour, now->tm_min, now->tm_sec, (long)nowtime);
return 0;
}

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