通过日期生成星期几

原理是通过基姆拉尔森计算公式,来根据日期得出星期几

以下是C++语言的实现

 

#include "stdafx.h"
#include<iostream>
using namespace std;
int main()
{
    int year,month,day=1,m;;
    char *cWeekName[] = {"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
    do{
    cout<<"输入年月日(以空格间隔开):";
    cin>>year>>month>>day;
    if(month==1||month==2)
    {
        month+=12;
        year--;
    }
    cout<<cWeekName[(day+1+2*month+3*(month+1)/5+year+year/4-year/100+year/400)%7]<<endl;
    cout<<"继续请输入1，退出输入0：";
    cin>>m;
    }while(m);
}