格式化时间 与 时间戳的转换

2015-08-06 19:37:58

/*!
 * <格式化时间与时间戳的转换>
 * 
 * 2015/08/06 by <felove>
 */
#include <stdio.h>
#include <windows.h>
#include <time.h>

void timestampToFormat(time_t& t_1, tm& tm_1);
time_t formatToTimestamp(int _nYear, int _nMonth, int _nDay, int _nHour, int _nMinute, int _nSecond);

int main()
{
    //时间戳转格式化时间
    time_t timep;
    time(&timep);
    struct tm tm_1;
    timestampToFormat(timep,tm_1);
    printf("time():%d
",timep);
    printf("[%04d-%02d-%02d][%02d:%02d:%02d]
",tm_1.tm_year + 1900,tm_1.tm_mon + 1,tm_1.tm_mday,tm_1.tm_hour,tm_1.tm_min,tm_1.tm_sec);

    //格式化时间转时间戳
    time_t timep1 = formatToTimestamp(2015,8,6,18,6,0);
    printf("time()->localtime()->mktime():%d
",timep1);

    system("pause");
    return 0;
}

void timestampToFormat(time_t& t_1, tm& tm_1)
{
    localtime_s(&tm_1,&t_1);
}

time_t formatToTimestamp(int _nYear, int _nMonth, int _nDay, int _nHour, int _nMinute, int _nSecond)
{
    struct tm tm_1;
    tm_1.tm_year = _nYear - 1900;
    tm_1.tm_mon = _nMonth - 1;
    tm_1.tm_mday = _nDay;
    tm_1.tm_hour = _nHour;
    tm_1.tm_min  = _nMinute;
    tm_1.tm_sec = _nSecond;
    tm_1.tm_isdst = -1;
    time_t timep1 = mktime(&tm_1);
    return timep1;
}