没啥技术含量，只不过是在没事干，就把这个也记上，Windows下好像有这个api函数，但是在wince下用不了，所以还得自己封装一个。大体代码如下：

 

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/*the seconds of round year = 3600*24*366 */ #define SECONDOFROUNDYEAR 31622400   /*the seconds of general year = 3600*24*365 */ #define SECONDOFYEAR 31536000   unsigned int  SecondsFrom1970() {      SYSTEMTIME st;      unsigned int  tTemp=0;      unsigned int  tSecond=0;      int  month_s[2][12]={ {31,28,31,30,31,30,31,31,30,31,30,31},      {31,29,31,30,31,30,31,31,30,31,30,31}};      int  nDays=0;      int  nCount=0;      int  i;      int  j;        GetLocalTime(&st);      tSecond=st.wHour*3600+st.wMinute*60+st.wSecond;        for  (i=1970;i<st.wYear;++i)      {          if  (IsRound(i))              ++nCount;      }        tTemp+=(st.wYear-1970-nCount)*SECONDOFYEAR+nCount*SECONDOFROUNDYEAR;        if  (st.wMonth>1)      {          if  (IsRound(st.wYear))          {              for  (j=0;j<st.wMonth-1;++j)              {                  tTemp+=month_s[1][j]*MAXSECONDOFDAY;              }              tTemp+=(st.wDay-1)*MAXSECONDOFDAY+tSecond;          }          else          {              for  (j=0;j<st.wMonth-1;++j)              {                  tTemp+=month_s[0][j]*MAXSECONDOFDAY;              }              tTemp+=(st.wDay-1)*MAXSECONDOFDAY+tSecond;          }      }      else      {          tTemp+=(st.wDay-1)*MAXSECONDOFDAY+tSecond;      }        return  tTemp; }   bool  IsRound( int  year) {      /*is round year?*/      if ((year%100)&&(year%4==0)) return  1;      if ((year%100==0)&&(year%400==0)) return  1;      return  0; }