//计算从某年到某年的日数
int day(int x)
{
int sday = 0;
if((x % 400) ==0 || (x % 4) == 0 && (x % 100) != 0)
sday += 366;
else
sday += 365;
return sday;
}
/*********************/
//计算从1月1号到某月某日的日数
int day1(int x,int y, int z)
{
int mday[2][13] = {0,31,29,31,30,31,30,31,31,30,31,30,31,0,31,28,31,30,31,30,31,31,30,31,30,31};
int sday = 0,i,j;
if((x % 400) ==0 || (x % 4) == 0 && (x % 100) != 0)
for(i = 0,j = 0;j <= (y-1);j++)
sday += mday[i][j];
else
for(i = 1,j = 0;j <= (y-1);j++)
sday += mday[i][j];
sday += z;
return sday;
}