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145 lines
2.9 KiB
145 lines
2.9 KiB
#include <stdio.h>
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#include <stdlib.h>
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int yearr(int year)
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{
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if (year%4==0&&year%100||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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int printfweek()
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{
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printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\t\n","周日","周一","周二","周三","周四","周五","周六");
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}
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int tian(int month,int year)
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{
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int day;
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switch (month)
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{
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case 1:
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case 3:
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case 5:
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case 7:
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case 8:
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case 10:
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case 12:day=31;break;
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case 4:
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case 6:
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case 9:
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case 11:day=30;break;
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case 2:{
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if(year%400==0||(year%4==0&&year%100!=0))
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day=29;
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else
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day=28;
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}
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break;
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}
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return day;
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}
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int prifirst(int month,int year)
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{
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int b;
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if (month<3)
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{
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month=month+12;
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year--;
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}
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b=(1+2*month+3*(month+1)/5+year+year/4-year/100+year/400)%7;
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return b;
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}
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int prtmonth(int month)
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{
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switch (month)
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{
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case 1:printf("%26s\n","一月\n");break;
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case 2:printf("%26s\n","二月\n");break;
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case 3:printf("%26s\n","三月\n");break;
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case 4:printf("%26s\n","四月\n");break;
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case 5:printf("%26s\n","五月\n");break;
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case 6:printf("%26s\n","六月\n");break;
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case 7:printf("%26s\n","七月\n");break;
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case 8:printf("%26s\n","八月\n");break;
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case 9:printf("%26s\n","九月\n");break;
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case 10:printf("%26s\n","十月\n");break;
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case 11:printf("%26s\n","十一月\n");break;
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case 12:printf("%26s\n","十二月\n");break;
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}
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}
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int main()
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{ int a;
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int year,month,i,c,week;
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printf("1:查询某一年日历\n2:查询某年某月有几天\n3:查询某日是一年中的第几天\n");
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printf("请输入选项：\n") ;
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scanf("%d",&a);
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switch(a)
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{
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case 1:printf("年份\n:");
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scanf("%d",&year);
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for (month=1; month<=12; month++) {
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c=1;
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prtmonth(month);
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printfweek();
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week=prifirst(month,year);
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if (week!=6)
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for (i=0; i<=week; i++) {
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printf("\t");
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c++;
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}
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for (i=1; i<=tian(month,year); i++,c++)
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{
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printf("%d\t",i);
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if (c%7==0)
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{
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printf("\n");
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}
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}
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printf("\n");
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}
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return 0;
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break;
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case 2:int day;
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printf("输入年月：\n");
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scanf("%d%d",&year,&month);
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day=tian(month,year);
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printf("%d年%d月有%d天",year,month,day);
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return 0;
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break;
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case 3:int flag=0,le,sum;
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printf("输入年月日：\n");
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scanf("%d%d%d",&year,&month,&day);
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switch(month)
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{ case 1:sum=0;break;
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case 2:sum=31;break;
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case 3:sum=59;break;
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case 4:sum=90;break;
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case 5:sum=120;break;
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case 6:sum=151;break;
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case 7:sum=181;break;
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case 8:sum=212;break;
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case 9:sum=243;break;
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case 10:sum=273;break;
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case 11:sum=304;break;
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case 12:sum=334;break;
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default:flag=1;
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}
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if(flag==0)
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{
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sum=sum+day;
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if(year%400==0||(year%4==0&&year%100!=0))
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le=1;
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else
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le=0;
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if(le=1&&month>2)
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sum++;
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printf("%d月%d日是%d年的第%d天",month,day,year,sum);
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return 0;
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}
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break;
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}
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return 0;
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}
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