newtime.c

一个生成“yyyy-mm-dd hh-mm-ss”时间格式的处理程序。

#include <time.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

struct sTime {
     int Year;
     int Month;
     int Day;
     int Hour;
     int Min;
     int Sec;
};

int getSplitTime(char * rec, struct sTime *t)
{//2004-10-16 08:00:00
        char * pDeal;
        char sTime[5];

        pDeal = rec;
        strncpy(sTime,pDeal,4);sTime[4]='\0';
        t->Year = atoi(sTime);
        pDeal += 5;
        strncpy(sTime,pDeal,2);sTime[2]='\0';
        t->Month = atoi(sTime);
        pDeal += 3;
        strncpy(sTime,pDeal,2);sTime[2]='\0';
        t->Day = atoi(sTime);
        pDeal += 3;
        strncpy(sTime,pDeal,2);sTime[2]='\0';
        t->Hour = atoi(sTime);
        pDeal +=3;
        strncpy(sTime,pDeal,2);sTime[2]='\0';
        t->Min = atoi(sTime);
        pDeal +=3;
        strncpy(sTime,pDeal,2);sTime[2]='\0';
        t->Sec = atoi(sTime);
        return 1;
}

int main(int argc, char **argv)
{

	int pnum;
	time_t timep,btime,etime,interval;
	struct tm p,*p1;
	struct sTime strStartTime;
	struct sTime strEndTime;
        char buffer[100];               //开始时间
        char sBeginTime[100];
        char sEndTime[100];		//结束时间

	if ( argc != 2 ) {
		printf("Usage: %s pnum\n",argv[0]);
		exit(-1);
	}

	FILE * pfile = fopen("./config.txt","r");
        if( pfile == NULL )
        {
                printf( "The file config.txt was not opened\n" );
                exit(-1);
        }
        fgets(buffer,100,pfile);
        strcpy(sBeginTime,buffer);

        fgets(buffer,100,pfile);  
        strcpy(sEndTime,buffer);
	fclose(pfile);

	getSplitTime(sBeginTime,&strStartTime);
	getSplitTime(sEndTime,&strEndTime);

	pnum = atoi(argv[1]);

	p.tm_sec   = strStartTime.Sec;
	p.tm_min   = strStartTime.Min;
	p.tm_hour  = strStartTime.Hour;
	p.tm_mday  = strStartTime.Day;
	p.tm_mon   = strStartTime.Month-1;
	p.tm_year  = strStartTime.Year-1900;
	p.tm_isdst = 0;
	btime      = mktime(&p);

	p.tm_sec   = strEndTime.Sec;
	p.tm_min   = strEndTime.Min;
	p.tm_hour  = strEndTime.Hour;
	p.tm_mday  = strEndTime.Day;
	p.tm_mon   = strEndTime.Month-1;
	p.tm_year  = strEndTime.Year-1900;
	p.tm_isdst = 0;
	etime      = mktime(&p);

	interval = etime - btime;

	timep      = btime + interval * pnum;
	p1         = localtime(&timep);

	printf("%4d-%02d-%02d %02d:%02d:%02d",p1->tm_year+1900,p1->tm_mon+1,p1->tm_mday,p1->tm_hour,p1->tm_min,p1->tm_sec);
	return 0;
}