【C】“HH:MM:SS”格式的时间的计算

0xAA55 发表于 2014-7-7 13:33:22

这个和那个VB的差不多。这是个控制台程序，用法如下。D:\C_Proj\TimeCalc\Release>TimeCalc
USAGE:
TimeCalc <HH:MM:SS> <operator> <HH:MM:SS>
Operator can be + - * / % & | ^ << >>BIN下载：
SRC下载：
代码在此。VC6编译通过。//=============================================================================
//TimeCalc:
//进行HH:MM:SS格式的时间的加减乘除等运算。
//作者：0xAA55
//论坛：http://www.0xaa55.com/
//版权所有(C) 2013-2014 技术宅的结界
//请保留原作者信息，否则视为侵权
//-----------------------------------------------------------------------------
#include<stdio.h>
#include<time.h>

#define TC_SecondsPerMinute 60
#define TC_MinutesPerHour    60
#define TC_HoursPerDay       24
#define TC_SecondsPerHour    (TC_SecondsPerMinute*TC_MinutesPerHour)
#define TC_SecondsPerDay    (TC_SecondsPerMinute*TC_MinutesPerHour*TC_HoursPerDay)

//=============================================================================
//TimeToSeconds:
//将H:M:S表示时间转换为秒
//-----------------------------------------------------------------------------
#define TimeToSeconds(h,m,s) s+m*TC_SecondsPerMinute+h*TC_SecondsPerHour

//=============================================================================
//SecondsToTime:
//将秒转换为H:M:S表示时间
//-----------------------------------------------------------------------------
void SecondsToTime(time_t Time,unsigned*puHours,unsigned*puMinutes,unsigned*puSeconds)
{
*puHours=(Time / TC_SecondsPerHour),
*puMinutes=(Time / TC_SecondsPerMinute) % TC_MinutesPerHour,
*puSeconds=(Time % TC_SecondsPerMinute);
}

//=============================================================================
//ParseTimeString:
//从H:M:S格式的字符串提取H、M、S的值
//返回解析的数值个数
//-----------------------------------------------------------------------------
#define ParseTimeString(str,ph,pm,ps) \
sscanf(str,"%u:%u:%u",ph,pm,ps)

void Usage()
{
fputs(
   "USAGE:\n"
   "TimeCalc <HH:MM:SS> <operator> <HH:MM:SS>\n"
   "Operator can be + - * / % & | ^ << >>\n",stderr);
}

int main(int argc,char**argv)
{
time_t
   tTime1,
   tTime2,
   tTimeResult;

unsigned
   uHours1,
   uMinutes1,
   uSeconds1;

unsigned
   uHours2,
   uMinutes2,
   uSeconds2;

unsigned
   uHoursResult,
   uMinutesResult,
   uSecondsResult;

if(argc<4)
{
   Usage();
   return 1;
}

//分析输入的字符串
if(ParseTimeString(argv,&uHours1,&uMinutes1,&uSeconds1)!=3)
{
   Usage();
   return 1;
}
if(ParseTimeString(argv,&uHours2,&uMinutes2,&uSeconds2)!=3)
{
   Usage();
   return 1;
}

//换算成秒
tTime1=TimeToSeconds(uHours1,uMinutes1,uSeconds1);
tTime2=TimeToSeconds(uHours2,uMinutes2,uSeconds2);

//判断运算符
if(!strcmp(argv,"+"))
{
   tTimeResult=tTime1+tTime2;
}else
if(!strcmp(argv,"-"))
{
   tTimeResult=tTime1-tTime2;
}else
if(!strcmp(argv,"*"))
{
   tTimeResult=tTime1*tTime2;
}else
if(!strcmp(argv,"/"))
{
   tTimeResult=tTime1/tTime2;
}else
if(!strcmp(argv,"%"))
{
   tTimeResult=tTime1%tTime2;
}else
if(!strcmp(argv,"&"))
{
   tTimeResult=tTime1&tTime2;
}else
if(!strcmp(argv,"|"))
{
   tTimeResult=tTime1|tTime2;
}else
if(!strcmp(argv,"^"))
{
   tTimeResult=tTime1^tTime2;
}else
if(!strcmp(argv,"<<"))
{
   tTimeResult=tTime1<<tTime2;
}else
if(!strcmp(argv,">>"))
{
   tTimeResult=tTime1>>tTime2;
}

//转换成H:M:S的格式
SecondsToTime(tTimeResult,&uHoursResult,&uMinutesResult,&uSecondsResult);

//打印
printf("%u:%u:%u\n",uHoursResult,uMinutesResult,uSecondsResult);

//结束
return 0;
}

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【C】“HH:MM:SS”格式的时间的计算