萬年歷的設計1幕上輸出該年的年歷（包括每月的天數和所對應的星期2年月，輸出該月的月歷。：4用于控制變換不同年、月、日的顯示。即：當前若正在year表示年份的變量month表示月份的變量day表示日期的變量selecti表示月份的變量j表示一個月中的某一天的變量sum判斷某天是一年中的第幾天的變量a[]表示每月天數的數組變量year1系統時間年份的變量month1系統時間月份的變量day1系統時間日期的變量#include"time.h" /*#include"stdio.h"#include"math.h"#include"windows.h"#include"conio.h"#define /*#define #define #define #define #define inteachyeartotal(intyear,intmonth,intday); /*intcounterdays(intyear,intmonth,intday);intnowtime(intyear,intmonth,intday);intweek(intyear,intmonth,intday);intmaxDay(intyear,intmonth);intisleap(intyear);voidwhatweek(intyear,intmonth,intday);voiddisplay(intyear,intmonth);voiddisplay2(intyear,intmonth);voiddisplay3(intyear,intmonth,intday);voidsetDay1(intyear,intmonth,intday);voidsetDay2(intyear,intmonth,intday);voidsetDay3(intyear,intmonth,intday);voidjieri(intmonth,intday);voiddisplay1(intyear);voidgetmenu();voidmain()

/*主函數intyear,month,day,select;ile(1)tmenu();printf("請輸入相應數字:");

/*菜單選擇*/,&select);system("cls");itch(select)case

/*當選擇為1時顯示年歷*/printf(" anf("%d",&year);(year>0&&year<10000)

display1(year);/*調用函數*/printf("提示按↑：上一年

：下一年

他鍵：返回菜單\n");setDay1(year,month,day);sestem("cls");printf("輸入無效,重新輸入!\n");eak;case

printf("月歷顯示：輸入年月（如2011,6）:");scanf("%d,%d",&year,&month);r<10000&&month>=1&&month<=12)splay2(year,month);printf("提示按←：上個月按→：下個月按其他鍵：返回菜單\n");setDay2(year,month,day);sestem("cls");printf("輸入無效,重新輸入!\n");eak;case

printf("日期顯示：輸入年月日(比如2011,6,23):");anf("%d,%d,%d",&year,&month,&day);f(year>0&&year<10000&&month>=1&&month<=12&&day>=1&&day<=maxDay(ar,month))splay3(year,month,day);printf("提示按PageUp：前一天 按PageDown：后一天按其他鍵：返回菜單\n\n");setDay3(year,month,day);sestem("cls");printf("輸入無效,重新輸入!\n");eak;case4:(0);default: /*當輸入其他數字時，輸入無效，重新輸入stem("cls");printf("輸入無效,重新輸入!\n");intisleap(intyear)

/*判斷是否為閏年(year%4==0&&year%100!=0||year%400==0)return1;elsereturn0;intmaxDay(intyear,intmonth)/*每月的天數*/inta[]={31,28,31,30,31,30,31,31,30,31,30,31};

/*每個月中的天數if(isleap(year))1]=29;

returna[month-1];inteachyeartotal(intyear,intmonth,intday)

/*判斷某天是一年中的第幾天inti,sum=0;for(i=1;i<month;i++)y(year,i);m+=day;returnsum;intweek(intyear,intmonth,intday)

/*對天數進行判斷確定是星期幾*/intnumber=(year-1)+(year-1)/4-(year-1)/100+(year-1)/400achyeartotal(year,month,day);number=number%7 returnnumber;voiddisplay(intyear,intmonth)

/*輸出年月intmax,number,i,j=1;x=maxDay(year,month);mber=week(year,month,1);printf("%4s%4s %4s%4s%4s%4s u","Fri","sat");r(i=0;i<number;i++)printf(" /*1號前的星期補空格*/ile(j<=max)intf("%6d",j);if(i%7==6)");+;+;intf("\n\n");

/*每7格換一行*/voiddisplay1(intyear)intintf("\n");r(i=1;i<=12;i++)printf("%d年%d月\n\n",year,i);splay(year,i);voiddisplay2(intyear,intmonth)printf("\n%d年%d月\n",year,month);splay(year,month);voiddisplay3(intyear,intmonth,intday)whatweek(year,month,day);jieri(month,day);counterdays(year,month,day);

/*輸出年歷/*輸出月歷/*輸出日歷intcounterdays(intyear,intmonth,intday) /*判斷今天距特定日期的天數intyear1,days0,days1,month1,days,day1;time_ttimep;structtm*p;me(&timep);gmtime(&timep);year1=(1900+p->tm_year)month1=(1+p->tm_mon)y1=(p->tm_mday);

/*獲取系統時間year1、month1、day1分別為年、月、日*/ays0=(year-1)*365+(year-1)/4-(year-1)/100+(year-1)/400+eachyeartotal(year,month,y);ays1=(year1-1)*365+(year1-1)/4-(year1-1)/100+(year1-1)/400+eachyeartotal(year1,nth1,day1);days=days0-days1; /*計算出兩個日期之間的時間差printf("\n 今天距%d 年%d 月%d 日還有%d \n",year,month,day,days);returndays;voidwhatweek(intyear,intmonth,intday)

/*判斷是星期幾intnumber;umber=(year-1)+(year-1)/4-(year-1)/100+(year-1)/400+eachyeartotal(year,month,danumber=number%7 switch(number)caseprintf("\n%d年%d月%d日是星期日",year,month,day);break;caseprintf("\n%d年%d月%d日是星期一",year,month,day);break;caseprintf("\n%d年%d月%d日是星期二",year,month,day);break;caseprintf("\n%d年%d月%d日是星期三",year,month,day);break;caseprintf("\n%d年%d月%d日是星期四",year,month,day);break;caseprintf("\n%d年%d月%d日是星期五",year,month,day);break;caseprintf("\n%d年%d月%d日是星期六",year,month,day);break;fault:stem("cls");printf("出現錯誤!\n");voidjieri(intmonth,intday)(month==1)itch(day)case1:printf(",(month==2)itch(day)caseprintf(",這天是情人節(month==3)itch(day)case8:printf(",eak;caseprintf(",這天是植樹節(month==4)itch(day)caseprintf(",這天是愚人節5)switch(day)

/*判斷是否公歷節日case1:printf(",eak;caseprintf(",這天是青年節");6)switch(day)caseprintf(",這天是兒童節7)switch(day)caseprintf(",這天是建黨節(month==8)itch(day)caseprintf(",這天是建軍節(month==9)itch(day)caseprintf(",這天是教師節(month==10)itch(day)caseprintf(",這天是國慶節

chark;getch();itch(k)caseKEYNUMUp:

/*“↑”年份減小(year<2)stem("cls");printf("警告!超出范圍!\n");eak;ar--;display1(year);ar,month,day);eak;caseKEYNUMDown

/*“↓”年份變大ar++;display1(year);ar,month,day);eak;fault:stem("cls");chark;getch();ch();switch(k)caseKEYNUMLeft: /*“←”月份變小(month<2)nth+=12;ar--;(year<1)stem("cls");printf("警告!超出范圍!\n");eak;nth--;display2(year,month);ar,month,day);eak;caseKEYNUMRight:/*“→”月份變小*/(month>11)nth-=12;ar++;if(year<9999);month++;display2(year,month);tDay2(year,month,day);default:cls");voidsetDay3(intyear,intmonth,intday)控制日期的變換chark;getch();ch();switch(k)caseKEYNUMPageUp:(day<2)month--;(year,month);(month<1)

/*“PageUp”日期變小nth+=12;ar--;(year<1)stem("cls");printf("警告!超出范圍!\n");eak;y--;display3(year,month,day);setDay3(year,month,day);eak;caseKEYNUMPageDown:

day++;Day(year,month))y=1;nth++;(month>12)nth-=12;ar++;(year<10000);di