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#include<stdio.h>
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//判断闰年
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void f(year)
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{
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int year,day;
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if(year%4==0&&year%100!=0||year%400==0)
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return 1;
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else
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return 0;
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}
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void max_day(int year,int month)
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{
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int month_day[12]={31,28,31,30,31,30,31,31,30,31,30,31};
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if(f(year)==1)
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mouth[1]=29;
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return month_day[month-1];
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}
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//year总天数
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void max_day(int year,int month,int day)
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{
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int sum=0,i;
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for(i=1;i<month;i++)
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{
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sum+=max_day(i);
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}
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sum+=day;
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return sum;
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}
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//星期几
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void Weekday(int year,int month,int day)
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{
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int count,i,year_day,weekday;
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for(i=1;i<year;i++) //总天数
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{
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if(f(i)==1)
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year_day=366;
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else
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year_day=365;
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count+=year_day;
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}
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count+=sum;
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weekday=count%7;
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return weekday;
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}
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//输出星期
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void output_week(int year,int month,int day)
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{
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int weekday;
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Weekday(year,month,day);
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switch(weekday)
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{
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case 0:
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printf("%d/%d/%d是星期天\n",year,month,day);
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break;
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case 1:
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printf("%d/%d/%d是星期一\n",year,month,day);
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break;
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case 2:
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printf("%d/%d/%d是星期二\n",year,month,day);
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break;
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case 3:
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printf("%d/%d/%d是星期三\n",year,month,day);
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break;
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case 4:
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printf("%d/%d/%d是星期四\n",year,month,day);
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break;
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case 5:
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printf("%d/%d/%d是星期五\n",year,month,day);
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break;
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case 6:
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printf("%d/%d/%d是星期六\n",year,month,day);
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break;
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}
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}
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//年历
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void calendar(int year)
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{
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int i,j,k,l;
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for(i=1;i<=12;i++)
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{
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printf("%d\n",i);
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printf("日 一 二 三 四 五 六 \n")；
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for(j=0;j<weekday;j++) //开始位置
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printf(" ") ;
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l=1;
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for(k=1;k<max_day(l);k++)
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{
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l++;
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printf("%2d",k);
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if((k+weekday)%7==0)
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printf("\n");
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return 0;
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}
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return 0;
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}
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}
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void main()
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{
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//开始输出
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printf("--------------------------选择服务--------------------------") ；
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printf(" 1.日历显示")；
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printf(" 2.日期查询")；
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printf(" 3.距今多少天")；
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printf(" 4.退出")；
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printf("--------------------------选择服务--------------------------") ；
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int n,year,month,day;
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scanf("%d",&n);
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switch (n)
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{
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case 1:
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scanf("%d",year);
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calendar(year);
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}
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