C語言輸出當前日期和時間

#include <stdio.h> #include <time.h> char* asctime2(const struct tm *timeptr) { static const char wday_name[][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; static const char mon_name[][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; static char result[26]; sprintf(result, "%.3s %.3s%3d %.2d:%.2d:%.2d %d", wday_name[timeptr->tm_wday], mon_name[timeptr->tm_mon], timeptr->tm_mday, timeptr->tm_hour, timeptr->tm_min, timeptr->tm_sec, 1900 + timeptr->tm_year); return result; } int main(void) { time_t rawtime; struct tm *timeinfo; time(&rawtime); timeinfo = localtime(&rawtime); printf("%s", asctime2(timeinfo)); return 0; } //REF: //http://en.cppreference.com/w/c/chrono/asctime