万年历补充一小段内容

Question

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <time.h>
#define UP 0x48
#define DOWN 0x50
#define LEFT 0x4b
#define RIGHT 0X4d
#define PAGEUP 0x49
#define PAGEDOWN 0x51
struct Date
{ int year;
  int month;
  int day;
};
struct Date systemDate,currentDate;
int iday[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
char cday[13][7]={"\0","一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"};
int GetWeekday(int year,int month,int day);
int LeapYear(int year);
void CheckDate();
void GetKey();
void PrintSpace(int n);
void PrintWeek(struct Date *p);
void PrintCalendar(int year,int month,int day);
void PrintYear(int year,int month,int day);

int GetWeekday(int year,int month,int day)
{ int weekday=0,sum=0,i;
  if (LeapYear(year)) iday[2]=29;
  else iday[2]=28;
  for (i=0;i<month;i++)
      sum+=iday[i];
  sum+=day;
  weekday=(year-1)*365+(year-1)/4-(year-1)/100+(year-1)/400+sum;
  weekday%=7;
  return weekday;
}

int LeapYear(int year)
{ if (year%4==0&&year%100!=0||year%400==0)
      return 1;
  else return 0;
}
void CheckDate()
{ 
}
void GetKey()
{ int init=1;
  char cKey='\0',c='\0';
  while(1)
  { PrintCalendar(currentDate.year,currentDate.month,currentDate.day);
    if (init==1) 
   { printf("\n\n\t键盘操作说明\n");
     printf("  *************************\n");
     printf("  按W或w显示全年日历\n");
     printf("  按I或i查询指定日期的日历\n");
     printf("  按R或r重置为系统日期\n");
     printf("  按Q或q退出程序\n");
     printf("  --------------------------\n");
     printf("  按PageUp或PageDown修改年\n");
     printf("  按上下箭头修改月\n");
     printf("  按左右箭头修改日\n");
     init=0;
   } 
   cKey= getch();
   if (cKey==-32) 
   {cKey= getch();
    switch(cKey)
   { case UP:
      if(currentDate.month<12)currentDate.month++;
      else {currentDate.year++;currentDate.month=1;}
      break; 
     case DOWN:
      if(currentDate.month>1)currentDate.month--;
      else {currentDate.year--;currentDate.month=12;}
      break;  
     case LEFT:
      if(currentDate.day>1)currentDate.day--;
      else if(currentDate.month==1){currentDate.year--;currentDate.month=12;currentDate.day=31;}
      else {currentDate.month--;currentDate.day=31;}
      break;  
     case RIGHT:
      if(currentDate.day<iday[currentDate.month])currentDate.day++;
      else if(currentDate.month==12){currentDate.year++;currentDate.month=1;currentDate.day=1;}
      else {currentDate.month++;currentDate.day=1;}
      break;   
     case PAGEUP:currentDate.year++;break; 
     case PAGEDOWN:currentDate.year--;break; 
    }
    
   }
   else 
    {
    if  (cKey=='I'||cKey=='i') 
    { printf("\n\n输入要查询的日期（yyyy-mm-dd):");
      scanf("%d-%d-%d",&currentDate.year,&currentDate.month,&currentDate.day);
      CheckDate();
      getchar();
    } 
    if  (cKey=='R'||cKey=='r') currentDate=systemDate;
    if  (cKey=='Q'||cKey=='q') 
    {printf("\n  确定退出(Y/N)?");
     c=getchar();
     if(c=='Y'||c=='y') printf("\n  Bye-Bye!");return;
    }  
    if  (cKey=='W'||cKey=='w')
    {system("cls");
     PrintYear(currentDate.year,currentDate.month,currentDate.day);
    }      
}
}
}

void PrintSpace(int n)        //补充占位符 
{ int i;
  for (i=1;i<=n;i++)
     printf("%4c", '*');
}

void PrintWeek(struct Date *p)   //显示星期几 
{  int day;
   if (p==NULL) return;
   day=GetWeekday(p->year,p->month,p->day);
   printf("\n  ==========================");
   printf("\n  %4d-%02d-%02d是",p->year,p->month,p->day);
   switch(day)
   { case 0:printf("星期日");break; 
     case 1:printf("星期一");break; 
     case 2:printf("星期二");break; 
     case 3:printf("星期三");break; 
     case 4:printf("星期四");break; 
     case 5:printf("星期五");break; 
     case 6:printf("星期六");break; 
   }
}

void PrintCalendar(int year,int month,int day)
{  int OutputDay=1;
   int error=0;
   int dayinLastmonth=0;
   int weekday=0;
   int temp=0;
   if (LeapYear(year)) iday[2]=29;
   else iday[2]=28;
   if (day>iday[month])
   { printf("%s最多还有%d天",cday[month],iday[month]);
     error=1;
   }
   if (day<=0)
   { printf("日期必须是正数");
     error=1;
   }
   if (error)    //日期无效，重置为系统日期 
   {printf("按任意键继续..... ");
       getch();
    year=systemDate.year;
    month=systemDate.month;
    day=systemDate.day;
    currentDate=systemDate;
    if (LeapYear(year)) iday[2]=29;
    else iday[2]=28;
       } 
       weekday=dayinLastmonth=GetWeekday(year,month,1);
       //system("cls");
    printf("\t%d年%d月日历",year,month);
    if (LeapYear(year)) printf(" [闰年]\n\n");
    else printf(" [非闰年]\n\n");
    printf("  日  一  二  三  四  五  六\n");
    PrintSpace(dayinLastmonth);
    while(OutputDay<=iday[month]) 
        {printf("%4d",OutputDay); 
         if (weekday==6) printf("\n");
         weekday=weekday>5?0:weekday+1;
         OutputDay++;
         }
    PrintWeek(&currentDate); 
}

void PrintYear(int year,int month,int day)
{  int OutputDay=1;
   int OutputMonth=1;
   int error=0;
   int dayinLastmonth=0;
   int weekday=0;
   int temp=0;
   if (LeapYear(year)) iday[2]=29;
   else iday[2]=28;
   if (day>iday[month])
   { printf("\n  %s最多还有%d天",cday[month],iday[month]);
     error=1;
   }
   if (day<=0)
   { printf("\n  日期必须是正数");
     error=1;
   }
   if (error) 
   {printf("\n  按任意键继续..... ");
       getch();
    year=systemDate.year;
    month=systemDate.month;
    day=systemDate.day;
    currentDate=systemDate;
       } 
       weekday=dayinLastmonth=GetWeekday(year,1,1);
    printf("  %d年全年日历",year);
    if (LeapYear(year)) printf(" [闰年]\n");
    else printf(" [非闰年]\n"); 
    while(OutputMonth<=12) 
    { OutputDay=1;
      printf("\n\t%d年%d月\n",year,OutputMonth);
      printf("  日  一  二  三  四  五  六\n");
      PrintSpace(dayinLastmonth);
      while(OutputDay<=iday[OutputMonth]) 
       { printf("%4d",OutputDay); 
         if (weekday==6) printf("\n");
         weekday=weekday>5?0:weekday+1;
         OutputDay++;
       }
       printf("\n  --------------------------\n");
       OutputMonth++;
       dayinLastmonth=weekday;
    }
    printf("\n  按任意键返回主界面！\n");
    getch();
}

int main()
{ time_t t;  //time_t为time.h定义的结构体，一般为长整型
  struct tm *p;  //struct tm *localtime (const time_t *__timer)；
  time(&t);//获取Unix时间戳，time函数返回从1970年1月1日开始所经过的秒数 
  p=localtime(&t);//转为时间结构
  systemDate.year=p->tm_year+1900; /*获取当前年份,从1900开始，所以要加1900*/
  systemDate.month=p->tm_mon+1;   /*获取当前月份,范围是0-11,所以要加1*/
  systemDate.day=p->tm_mday;      /*获取当前月份日数,范围是1-31*/
  currentDate=systemDate;
  printf("\t202103C语言课程设计\n");
  printf("\t设计者：智能207 XXXXXX\n\n");
  system("color F4"); 
  GetKey();
  PrintWeek(&currentDate);
  return 0;
}
 

Answer 1

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