轉(zhuǎn)自：http://www.cnblogs.com/yukaizhao/archive/2011/04/29/cpp_time_system_time.html （玉開(kāi)）

C++標(biāo)準(zhǔn)庫(kù)中的時(shí)間需要引用time.h，可以取的本地時(shí)間或者格林威治時(shí)間，只能精確到秒

#include <iostream>
 
/*包含time頭文件*/
#include <time.h>
 
 
using namespace std;
 
int main()
{
    //time_t是long類(lèi)型，精確到秒，是當(dāng)前時(shí)間和1970年1月1日零點(diǎn)時(shí)間的差
    const time_t t = time(NULL);
 
    cout<<"current time is "<<t<<endl;
 
    /*本地時(shí)間：日期，時(shí)間 年月日，星期，時(shí)分秒*/
    struct tm* current_time = localtime(&t);
    printf("current year is %d;current month is %d;current date of month is %d
",
        1900 + current_time->tm_year,
        1 + current_time->tm_mon/*此month的范圍為0-11*/,
        current_time->tm_mday);
 
    printf("current day of year is %d;current day in week is %d
",
        current_time->tm_yday,/*當(dāng)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 
",
        current_time->tm_hour,
        current_time->tm_min,
        current_time->tm_sec);
 
    printf("	本地時(shí)間：%d-%d-%d %d:%d:%d
",
        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);
 
    /*格林威治時(shí)間*/
    struct tm* current_gmtime = gmtime(&t);
 
    printf("格林威治時(shí)間：%d-%d-%d %d:%d:%d
",
        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;
}

　　

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