158 lines
3.2 KiB
C++
158 lines
3.2 KiB
C++
#include<stdio.h>
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//判断闰年还是平年
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int isleapyear(int year){
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if(year%400==0&&year%4==0&&year%100!=0)
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return 0;//闰年
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else
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return 1;//平年
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}
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//表示指定日期对应的星期几，蔡乐公式
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int getDayOfweek(int year,int month,int day){
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if(month<3){
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year--;
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month+=12;}
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int k = year % 100;
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int j = year / 100;
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int h = (j/ 4 - 2 * j + k + k / 4 + 13 * (month + 1) / 5 + day - 1);
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h= h % 7;
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if (h < 0)
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h += 7;
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return h;
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}
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//单列输出
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//表示输出指定年的日历
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void sureyearcarlender(int year,int isdoubleline){
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int monthday[]={31,31,28+isleapyear(year),31,30,31,30,31,30,31,30,31,30};
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printf("这是%d年的日历\n",year);
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for(int month=1;month<=12;month++){
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printf("\n%d月\n",month);
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printf(" 日 一 二 三 四 五 六\n");
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//判断月的1号是周几
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int empty,dateweek=getDayOfweek(year,month,1);
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//1号以前的空格输出
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for(empty=0;empty<dateweek;empty++){
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printf(" ");
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}// 对后面日期的输出
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for(int datenum=1;datenum<=monthday[month];datenum++){
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printf("%3d",datenum);
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if((datenum+dateweek)%7==0)//考虑换行时机
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printf("\n");
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}
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}
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}
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void onedoublelineture(int year){
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int monthday[]={31,31,28+isleapyear(year),31,30,31,30,31,30,31,30,31,30};
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for(int month=1;month<=12;month+=2){
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printf("\n%d月\n",month);
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printf(" 日 一 二 三 四 五 六\n");
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//判断月的1号是周几
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int empty,dateweek=getDayOfweek(year,month,1);
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//1号以前的空格输出
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for(empty=0;empty<dateweek;empty++){
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printf(" ");
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}// 对后面日期的输出
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for(int datenum=1;datenum<=monthday[month];datenum++){
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printf("%3d",datenum);
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if((datenum+dateweek)%7==0)//考虑换行时机
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printf("\n");}
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}
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}
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void twodoublelineture(int year)
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{
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int monthday[]={31,31,28+isleapyear(year),31,30,31,30,31,30,31,30,31,30};
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for(int month=2;month<=12;month+=2){
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printf("\n%d月\n",month);
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printf(" 日 一 二 三 四 五 六\n");
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//判断月的1号是周几
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int empty,dateweek=getDayOfweek(year,month,1);
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//1号以前的空格输出
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for(empty=0;empty<dateweek;empty++){
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printf(" ");
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}// 对后面日期的输出
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if(month%2==0);
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for(int datenum=1;datenum<=monthday[month];datenum++){
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printf("%3d",datenum);
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if((datenum+dateweek)%7==0)//考虑换行时机
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printf("\n");}
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}
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}
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void definewhatyearanddate(int year,int month,int day)
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{
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int c=getDayOfweek(year,month,day);
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if(isleapyear(year))
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{printf("\n%d年%d月%d日为闰年\n",year,month,day);}
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else
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{printf("\n%d年%d月%d日为平年\n",year,month,day);}
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printf("%d年%d月%d日为周%d\n",year,month,day,c);
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}
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int main(){
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int s,year,month,day,m;
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printf("\n1.查询某月某日时周几(空隔)\n");
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printf("\n2.查询某一年的日历(单列输出)\n");
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printf("\n3.查询某一年的日历(双列输出)\n");
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printf("\n4.退出\n");
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scanf("%d",&s);
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if(s!=1&&s!=2&&s!=3&&s!=4)
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{
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printf("\n选项错误，请重新输入\n");
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return m=main();}
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//根据s进行菜单选择
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int c;
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if(s==1)
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{
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c=scanf("%d %d %d",&year,&month,&day);
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if(!day)
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;
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{
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printf("\n输入错误，请重新输入\n");
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return c;}
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definewhatyearanddate(year,month,day);
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}
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if(s==2)
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{
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scanf("%d",&year);
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sureyearcarlender(year,1);//单列
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}
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if(s==3)
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{
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scanf("%d",&year);
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onedoublelineture(year);
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printf(" \n");
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twodoublelineture(year);
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//双列
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}
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if(s==4)
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{
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printf("\n已退出\n\n");
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}
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}
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