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2017/4/23

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{/*实现年份月份*/
Console.WriteLine("请输入年份(1900-2100):");
int year,month;
year=int.Parse(Console.ReadLine());
while (year < 1900 || year > 2100)
{

Console.WriteLine("请输入正确的年份(1900-2100):");

year = int.Parse(Console.ReadLine());
}

Console.WriteLine("请输入月份(1-12):");
month = int.Parse(Console.ReadLine());

while (month < 1 || month > 12)
{
Console.WriteLine("请输入正确的月份(1-12):");

month = int.Parse(Console.ReadLine());
}

/*计算某年某月到1990年1月1日的天数*/
int acrossyear,acrossmonth,days=0;
for(acrossyear=1900;acrossyear<year;acrossyear++)
{if(acrossyear%4==0&&acrossyear%100!=0||acrossyear%400==0)
days+=366;
else days+=365;}
for (acrossmonth = 1; acrossmonth < month; acrossmonth++)
if (acrossmonth == 2)
{
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
days += 29;
else days += 28;
}
else if (acrossmonth < 8 && acrossmonth % 2 != 0 || acrossmonth > 7 && acrossmonth % 2 == 0)
days += 31;
else days += 30;


int numblank;
numblank=days%7+1;//计算空白数量
List<string>a=new List<string>();//创建某个月日历的集合
int i;
for(i=1;i<=numblank;i++)
a.Add(" ");
/*求某月的天数*/
int ts,j;
if(month==2)
{if(year% 4 == 0 && year % 100 != 0 || year % 400 == 0)
ts=29;
else ts=28;}
else if(acrossmonth < 8 && acrossmonth % 2 != 0 || acrossmonth > 7 && acrossmonth % 2 == 0)
ts=31;
else ts=30;
for(j=1;j<=ts;j++)
a.Add(j.ToString());//创建日历集合
/*输出日历*/
Console.WriteLine("****************************************************************");
Console.Write("日"+"\t"+"一"+"\t"+"二"+"\t"+"三"+"\t"+"四"+"\t"+"五"+"\t"+"六");
int k = a.Count(); int x;
for (x = 0; x < k; x++)
{
if (x % 7 == 0) Console.WriteLine("\n");
Console.Write(a[x] + "\t");
}
Console.WriteLine("\n"+"****************************************************************");
Console.WriteLine("程序结束,请按确认键结束");

 

}
}
}

2017/4/23