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1. C++标准库中的时间需要引用time.h，可以取的本地时间或者格林威治时间，只能精确到秒
#include <iostream>/*包含time头文件*/#include <time.h>using namespace std;int main(){ //time_t是long类型，精确到秒，是当前时间和1970年1月1日零点时间的差 const time_t t = time(NULL); cout<<"current time is "<<t<<endl; /*本地时间：日期，时间 年月日，星期，时分秒*/ struct tm* current_time = localtime(&t); printf("current year is %d;current month is %d;current date of month is %d\r\n", 1900 + current_time->tm_year, 1 + current_time->tm_mon/*此month的范围为0-11*/, current_time->tm_mday); printf("current day of year is %d;current day in week is %d\r\n", current_time->tm_yday,/*当前日期是今年的第多少天[0,365] */ current_time->tm_wday/*days since Sunday - [0,6] */); printf("time part %d:%d:%d \r\n", current_time->tm_hour, current_time->tm_min, current_time->tm_sec); printf("\t本地时间：%d-%d-%d %d:%d:%d\r\n", current_time->tm_year + 1900, current_time->tm_mon + 1, current_time->tm_mday, current_time->tm_hour, current_time->tm_min, current_time->tm_sec); /*格林威治时间*/ struct tm* current_gmtime = gmtime(&t); printf("格林威治时间：%d-%d-%d %d:%d:%d\r\n", current_gmtime->tm_year + 1900, current_gmtime->tm_mon + 1, current_gmtime->tm_mday, current_gmtime->tm_hour, current_gmtime->tm_min, current_gmtime->tm_sec); system("pause"); return 0;} |
2. 系统时间 SYSTEMTIME 使用时要引用windows.h，可以精确到毫秒级别
#include <iostream>#include <Windows.h>int main(){ //声明变量 SYSTEMTIME sys_time; //将变量值设置为本地时间 GetLocalTime( &sys_time ); //输出时间 printf( "%4d/%02d/%02d %02d:%02d:%02d.%03d 星期%1d\n",sys_time.wYear, sys_time.wMonth, sys_time.wDay, sys_time.wHour, sys_time.wMinute, sys_time.wSecond, sys_time.wMilliseconds, sys_time.wDayOfWeek); system("time"); system("pause"); return 0;} |
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原文地址：http://www.cnblogs.com/Jimmy104/p/4330491.html
