/*储存12个月的天数*/
const int days[12]={31,28,31,30,31,30,31,31,30,31,30,31};
/*判断是否为闰年*/
int isLeapYear(int year)
{
if(((year%4==0)&&(year%100!=0))
||(year%400==0))
{
return 1;
}
return 0;
}
int CalcHowManyDays(unsigned int Year,
unsigned int Month,
unsigned int Day,
unsigned int * pSumOfDays)
{
if(Month<=0||Month>12 || Day<=0||Day >31 || NULL == pSumOfDays)
return -1;
long sum=0;
int i;
//累计当年以往各月的天数
for(i=0;i<Month-1;i++)
{
sum+=days[i];
}
if(Month>2)
{
if(isLeapYear(Year))
{//闰年多一天
sum+=1;
}
}
//累计当年当月的天数
sum+=Day;
*pSumOfDays = sum;
return 0;
}
days
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转载自blog.csdn.net/libin88211/article/details/47706245
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