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#include<stdio.h>
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#include<string.h>
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#include<math.h>
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#include<time.h>
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int year,month,day;
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int day_of_month[12]={31,28,31,30,31,30,31,31,30,31,30,31};//每月的最后一天
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int current_year,current_month,current_day;//当前的时间
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/*******************其他函数********************/
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int judgement(int year)/*用来判断闰年*/
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{
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if(year%400==0||year%4==0&&year%100!=0)//闰年能被400整除或者被4整除但是不能整除100
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return 1;
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else return 0;
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}
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int show_week(int year,int month,int day)
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{
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/*
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公式:w=(y+[y/4]+[c/4]-2c+[26(m+1)/10]+d-1)%7
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w是星期，y是年份的后两位减1，c是世纪，m是月份（其中1月按13算，2月按14算），d是当天的日期
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*/
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int w ,k; //记录是周几
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int year_last=year%100,c=year/100 , m = month;
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if (month==1 )
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{
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year_last-=1 ;
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m=13 ;
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}
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else if (month==2)
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{
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year_last-=1;
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m=14;
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}
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w = (year_last + year_last/4 + c/4 - 2*c +26*(m+1)/10+day-1);
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if (w<0)
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{
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k=(w%7+7)%7;
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}
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else k=w%7;
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return k ;
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}
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int current_time()
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{
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time_t timep;
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struct tm *p;
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time(&timep);
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p=gmtime(&timep);
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current_year=1900+p->tm_year;
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current_month=1+p->tm_mon;
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current_day=p->tm_mday;
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}
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/*------------------功能一 -----------------*/
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int print_year(int year)//输入年份
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{
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int i,k,j,frist_week;
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printf("Please input the year whose calender you want to know:");
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scanf("%d",&year) ;
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printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~The Calender of Year %d~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n",year);
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printf("\n");
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if(judgement(year))//调用judgement，判断年份是否为闰年
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{
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day_of_month[1]=29;//闰年
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}
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else day_of_month[1]=28;
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for(i=1;i<13;i++)
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{
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frist_week=show_week(year,i,1);
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printf(" %d月 \n",i);
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printf("SUN\tMOD\tTUE\tWED\tTHU\tFRI\tSAT\n");
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for(j=1;j<=frist_week-1;j++)
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{
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printf("\t");
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if (j%7==0) printf ("\n");
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}
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for (k=1;k<=day_of_month[i-1];k++)
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{
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printf("%d\t",k);
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if (j%7==0) printf ("\n");
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j++;
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}
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printf("\n");
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printf("\n");
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printf("\n");
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}
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}
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/*-------------------功能二------------------*/
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int print_year_month()//输入年月
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{
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int x,y,i,frist_week;
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printf("Please input the month whose calender you want to know");
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do
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{
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scanf("%d.%d",&year,&month);
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if(month<1||month>12)
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{
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printf("the month is error\n");
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printf("Please input the month whose calender you want to know\n");
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}
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}while(month<1||month>12);
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printf("*********************%d年%d月**********************\n",year,month);
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if(judgement(year))
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{
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day_of_month[1]=29;
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}
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else day_of_month[1]=28;
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frist_week=show_week(year,month,1);
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printf ("SUN\tMOD\tTUE\tWED\tTHU\tFRI\tSAT\n");
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for(x=1;x<=frist_week;x++)
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{
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printf("\t");
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if (x%7==0) printf ("\n");
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}
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for (y=1;y<=day_of_month[month-1];y++)
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{
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printf("%d\t",y);
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if (x%7==0) printf ("\n");
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x++;
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}
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printf("\n");
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}
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/*-----------------功能三------------------*/
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int sumdays(int year,int month,int day)
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{
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int days=0,days1=0,days2=0,days3=0,temp_day=0;//部分时间之和
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int i,judgement1,sum_days;//当前时间,总时间
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judgement1=judgement(year);//闰年数
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if(year<current_year)/*******************今年之前********************/
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{
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for(i=year+1;i<current_year;i++)//例，2000，指2001-2018
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{
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if(judgement(i))//判断2001-2018之间的闰年
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{
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days=days+366;//将2001-2018之间每个闰年的天数相加
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}
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else days=days+365;//将2001-2018之间除闰年之外的天数相加
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}
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for(i=month;i<=12;i++)//计算输入年份剩余的月数
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{
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days1=days1+day_of_month[i-1];//将月份的天数相加
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}
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days2=days1+-day;//将那些年的天数和剩下月份的天数相加
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days3=days2+days;
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for(i=0;i<current_month-1;i++)//计算今年已经过了多少个月
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{
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if(judgement1)
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{
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day_of_month[1]=29;
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}
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temp_day=temp_day+day_of_month[i];//将今年过去的月份的天数相加
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}
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temp_day=temp_day+current_day;//将今年过去月份的天数和今年这个月的天数相加
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sum_days=temp_day+days3;//总天数
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}
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if (year > current_year )/***********今年之后**************///同理
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{
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for (i =current_year+1;i < current_year ;i++)//计算今年与输入的年份之间的天数
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{
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if (judgement(i))
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{
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days=days+366;
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}
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else days+=365;
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}
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for (i = current_month+1;i<=12;i++)//今年还剩多少个月
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{
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days=days+day_of_month[i-1];//今年还剩多少天,月份相加
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}
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days=days+day_of_month[month-1]-current_day;
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for (i = 0;i <month-1;i++ )
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{
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if (judgement1)
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{
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day_of_month[1]=29;
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}
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temp_day=temp_day+day_of_month[i];
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}
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//当前日子是这一年的多少天
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temp_day = temp_day+ day;
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sum_days=temp_day+days;
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}
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if(year==current_year)/**********************今年***********************/
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{
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if(month <current_month)//假设输入月份在当前月份之前
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{
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for (i=month+1;i<current_month;i++)//计算中间相隔了多少个月份
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{
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if (judgement1)//今年是否为闰年
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{
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day_of_month[1]=29;
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}
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days=days+day_of_month[i];//计算这些月有多少天
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}
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sum_days=days+current_day+day_of_month[month-1]-day;//将这些月的天数和当前日期(当月过了几天)和输入日期此月还剩多少天
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}
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if (month>current_month)//假设输入月份在当前月份之后
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{
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for (i=current_month+1;i<month;i++)//将输入月份减去当前月份
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{
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if (judgement1)
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{
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day_of_month[1]=29;
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}
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days = days + day_of_month[i];//将间隔月份天数相加
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}
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sum_days=days+day+day_of_month[month-1]-current_day;//间隔月份加一个月时间加上输入月份的日期(即是输入月份以及过了的天数)再减去当前月份已经过了了天数
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}
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if (month==current_month)//假设输入月份在当前这个月内
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sum_days=fabs(day-current_day);//距离的天数即为两者相减的绝对值
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}
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return sum_days ;
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}
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int print(int year,int month,int day)
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{
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int week;
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printf("Please input the day whose calender you want to kown");
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do
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{
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scanf("%d.%d.%d",&year,&month,&day);
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if(judgement(year))
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{
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day_of_month[1]=29;
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}
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printf("\n");
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if(day<=0||day>day_of_month[month-1]);
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printf("%d年%d月%d号是：",year,month,day);
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}
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while(day<=0||day>day_of_month[month-1]);
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week=show_week(year,month,day);
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switch(month)
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{
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case 1:switch(day)
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{
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case 1:printf("元旦");
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break;
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default:printf("不是阳历节日");
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}
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break;
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case 2:switch(day)
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{
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case 14:printf("情人节");
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break;
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default:printf("不是阳历节日");
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}
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break;
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case 3:switch(day)
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{
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case 8:printf("妇女节");break;
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case 12:printf("植树节");break;
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default:printf("不是阳历节日");
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}
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break;
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case 4:switch(day)
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{
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case 1:printf("愚人节");break;
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case 22:printf("地球日");break;
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default:printf("不是阳历节日");
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}
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break;
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case 5:switch(day)
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{
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case 1:printf("劳动节");break;
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case 4:printf("青年节");break;
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default:printf("不是阳历节日");
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}
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break;
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case 6:switch(day)
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{
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case 1:printf("儿童节");break;
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default:printf("不是阳历节日");
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}
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break;
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case 7:switch(day)
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{
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case 1:printf("建党节");break;
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case 26:printf("火把节");break;
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default:printf("不是阳历节日");
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}
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break;
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case 8:switch(day)
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{
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case 1:printf("建军节");break;
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default:printf("不是阳历节日");
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}
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break;
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case 9:switch(day)
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{
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case 10:printf("教师节");break;
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default:printf("不是阳历节日");
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}
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break;
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case 10:switch(day)
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{
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case 1:printf("国庆节");break;
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case 31:printf("万圣夜");break;
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default:printf("不是阳历节日");
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}
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break;
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case 11:switch(day)
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{
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case 11:printf("光棍节");break;
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default:printf("不是阳历节日");
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}
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break;
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case 12:switch(day)
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{
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case 24:printf("平安夜");break;
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case 25:printf("圣诞节");break;
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default:printf("不是阳历节日");
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}
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break;
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}
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printf("\n");
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printf("%d年%d月%d号是:",year,month,day);
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switch(week)
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{
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case 0:printf("Sunday");break;
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case 1:printf("Monday");break;
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case 2:printf("Tuesday");break;
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case 3:printf("Wednesday");break;
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case 4:printf("Thursday");break;
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case 5:printf("Friday");break;
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case 6:printf("Saturday");break;
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}
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printf("\n");
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printf("距离今天还有%d天\n",sumdays(year,month,day));
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printf("\n");
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}
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/********************************主函数**************************/
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int main()
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{
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int select;
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printf("========================================日历菜单========================================\n");
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printf("\n");
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printf("-------------------------------------请输入您的选择-------------------------------------\n");
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printf("\n");
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printf("------------------------------------------功能：----------------------------------------\n");
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printf("\n");
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printf("***********************************1:查找某年的日历*************************************\n");
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printf("\n");
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printf("***********************************2:查找某月的日历*************************************\n");
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printf("\n");
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printf("***********************************3:查找某日的日历*************************************\n");
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printf("\n");
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printf("***********************************0:退出***********************************************\n");
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printf("\n");
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printf("========================================================================================\n");
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printf("\n");
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while(1)
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{
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printf("请输入您的选择\n");
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scanf("%d",&select);
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switch (select)
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{
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case 1:
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print_year(year);
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break;
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case 2:
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print_year_month();
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break;
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case 3:
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current_time();
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print(year,month,day);
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sumdays(year,month,day);
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break;
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case 0:
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break;
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}
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}
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}
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