xingqi.txt

用户通过这个程序可以方便的进行星期的查询。

#include "iostream.h"
int main() 
{int day,mn,yr,i,days=0,s,k; 
 int mont[13]={0,31,28,31,30,31,30,31,31,30,31,30,31}; 
 char wek[][9]={ {'S','u','n','d','a','y'}, 
 {'M','o','n','d','a','y'}, 
 {'T','u','e','s','d','a','y'}, 
 {'W','e','d','n','s','d','a','y'}, 
 {'T','h','u','r','s','d','a','y'}, 
 {'F','r','i','d','a','y'}, 
 {'S','a','t','u','r','d','a','y'} 
               }; 
 cout<<"Inpute the date (year-month-day):"<<endl; 
 cin>>yr>>mn>>day; 
 if (yr%4==0||yr%100==0||yr%400==0) 
 mont[2]=29; 
 else 
 mont[2]=28; 
 for (i=0;i<mn;i++) 
 days+=mont[i]; 
 days+=day; 
 s=yr-1+(int)((yr-1)/4)-(int)((yr-1)/100)+(int)((yr-1)/400)+days; 
 k=s%7; 
 cout<<yr<<"  "<<mn<<"  "<<day<<"  "<<wek[k]<<endl; 
 return 0; 
}