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1、源代码

#include 
   
    #include 
    
     #include 
     
      #define Now_Time_LEN 20#define Now_Week_Num_LEN 10char nowTime[10] = {
   0};char nowWeek_Num[10] = {
   0};void *getNowTime(char *Now_Time, char *Now_Week_Num){
       int tmp_day = 0;    int tmp_year = 0;    int iZoneOffset = 8;    int month[] = {
   0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};    char acWeek[5] = {
   0};    char acHour[3] = {
   0};    char acMin[3] = {
   0};    char acSec[3] = {
   0};    memset(Now_Time, 0, Now_Time_LEN + 1);    memset(Now_Week_Num, 0, Now_Week_Num_LEN + 1);    time_t now;    struct tm timenow;    now = time(NULL);    if (now <= 0 || &timenow == NULL)    {
           return NULL;    }    (void *)gmtime_r(&now, &timenow);    timenow.tm_year += 1900;    timenow.tm_mon += 1;    if (timenow.tm_mon == 2) // 2 月    {
           if ((timenow.tm_year % 400 == 0) || (timenow.tm_year % 4 == 0 && timenow.tm_year % 100 != 0))        {
               month[2] += 1;        }    }    //+ timezone    timenow.tm_hour += iZoneOffset;    if (timenow.tm_hour >= 24)    {
           tmp_day = 1;        timenow.tm_hour %= 24;    }    timenow.tm_mday += tmp_day;    if (timenow.tm_mday > month[timenow.tm_mon])    {
           timenow.tm_mday = 1;        timenow.tm_mon += 1;    }    if (timenow.tm_mon > 12)    {
           tmp_year = 1;        timenow.tm_mon = 1;    }    timenow.tm_year += tmp_year;    strftime(acWeek, sizeof(acWeek), "%a", &timenow);    strftime(acHour, sizeof(acHour), "%H", &timenow);    strftime(acMin, sizeof(acMin), "%M", &timenow);    strftime(acSec, sizeof(acSec), "%S", &timenow);    if (!strcmp(acWeek, "Mon"))    {
           strncat(Now_Week_Num, "1", 1);    }    else if (!strcmp(acWeek, "Tue"))    {
           strncat(Now_Week_Num, "2", 1);    }    else if (!strcmp(acWeek, "Wed"))    {
           strncat(Now_Week_Num, "3", 1);    }    else if (!strcmp(acWeek, "Thu"))    {
           strncat(Now_Week_Num, "4", 1);    }    else if (!strcmp(acWeek, "Fri"))    {
           strncat(Now_Week_Num, "5", 1);    }    else if (!strcmp(acWeek, "Sat"))    {
           strncat(Now_Week_Num, "6", 1);    }    else if (!strcmp(acWeek, "Sun"))    {
           strncat(Now_Week_Num, "7", 1);    }    else    {
           printf("Now_Week_Num get erro !\n");    }    strncat(Now_Time, acHour, 2);    strncat(Now_Time, ":", 1);    strncat(Now_Time, acMin, 2);    strncat(Now_Time, ":", 1);    //strncat(Now_Time, "00", 2);    strncat(Now_Time, acSec, 2);        return NULL;}int main(){
       getNowTime(nowTime, nowWeek_Num);    printf("nowTime is %s !\nnowWeek_Num is %s !\n", nowTime, nowWeek_Num);    return 0;}
     
    
   

2、运行结果

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