注意星期输出
#include<iostream>
using namespace std;
int days[] = {0, 30, 31, 30, 31, 31, 30, 31, 30, 31};//4月之后每月的天数,第一个元素为0便于计数
string week[] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
int cal_days(int y, int d)
{
//计算该日期与4月12相隔的天数
int num ...