[C语言练习]万年历加强版

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/**

 * @copyright 2011 Chunhui Wang

 *

 * [email protected]

*/

#include<stdio.h>

int main()

{

    printf("\t\t\t万年历\n");

    printf("\t\t\t\t------Made by Chunhui Wang\n\n");

    int
i,year, month;

    int
day;//记录每月第一天是周几。

    int
date;//每年星期变化，平年加1，闰年加2。

    int
a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};//月份天数 。

    int
Year[10000];//每年第一天周几。

    Year[1900]=1;

    for(i=1900;i<9999;i++)

    {

        date=1;

        if((i%4==0)&&(i%100!=0)||(i%400==0))

        {

            date=2;

        }

        Year[i+1]=(Year[i]+date)%7;

    }

    while(1)

    {

        printf("请输入年份（如1900）：");

        scanf("%d",&year);

        printf("请输入月份（如  01）：");

        scanf("%d",&month);

        a[2]=28;

        if(((year%4==0)&&(year%100!=0)||(year%400==0))&&(month>=2))

        {

            a[2]=29;

        }

        day=Year[year];

        for(i=1;i<month;i++)

        {

            day=day+a[i];

        }

        day=day%7;

        printf("\t\t\t\t%d年%d月份\n\n",year,month);

        printf("\t星期一\t星期二\t星期三\t星期四\t星期五\t星期六\t星期日\n");

        for(i=0;i<day;i++)

        {

            printf("\t");

        }

        if(day==0)printf("\t\t\t\t\t\t\t");

        for(i=0;i<a[month];i++)

        {

            printf("%d\t",i+1);

            if((i+day)%7==0)

            {

                printf("\n\t");

            }

        }

        printf("\n\n\n\n");

    }

    return
0;

}