萬年歷C語言設計

1、萬年歷的設計:要求：模仿現(xiàn)實生活中的掛歷，能夠顯示年歷、月歷、日歷，并具備退出功能。當前頁以系統(tǒng)當前日期的月份為準顯示當前月的每一天（顯示出日及對應的星期幾）。當系統(tǒng)日期變到下一月時，系統(tǒng)自動翻頁到下一月。萬年歷的程序流程圖:上圖為打印日歷程序圖具體對于月份和年份的程序圖如下 上圖為計算星期方法萬年歷的設計的程序源代碼：#include <stdio.h>#include <stdlib.h>#include <ctype.h>void f()int day,month,year,sum,leap,S; printf("n 請輸入年月日 n&quo

2、t;); scanf("%d%d%d",&year,&month,&day);while(1) if(month>12|month<1)|(day>31|day<1)printf(" 輸入錯誤，重新輸入 "); scanf("%d%d%d",&year,&month,&day);else break; switch(month)case 1:sum=0;break;case 2:sum=31;break;case 3:sum=59;break;case 4:sum

3、=90;break;case 5:sum=120;break;case 6:sum=151;break;case 7:sum=181;break;case 8:sum=212;break;case 9:sum=243;break;case 10:sum=273;break;case 11:sum=304;break;case 12:sum=334;break; default:printf("data error");break;sum=sum+day;if(year%400=0|(year%4=0&&year%100!=0) leap=1;else lea

4、p=0; if(leap=1&&month>2) sum+;S=(year-1+(year-1)/4-(year-1)/100+(year-1)/400+sum)%7; switch(S)case 1:pri ntf("星期一 n");break;case 2:pri ntf("星期二 n");break;case 3:pri ntf("星期三 n");break; case 4:pri ntf("星期四 n");break; case 5:pri ntf("星期五 n")

5、;break; case 6:pri ntf("星期六 n");break; case 0:printf("星期日 n");break;void g()int i,j=1,k=1,a,b,month,year; printf("n 輸入年月 :n"); scanf("%d%d",&year,&month);while(1)if(month>12|month<1)printf(" 輸入錯誤，重新輸入 "); scanf("%d%d",&yea

6、r,&month);else break;b=days_month(month,year);a=firstday (month,year);printf("f*n");printf(" Sun Mon Tue Wed Thu Fri Sat n");if(a=7) for(i=1;i<=b;i+) printf("%4d",i); if(i%7=0) printf("n");if(a!=7) while (j<=4*a)printf(" ");j+;for(i=1;i<

7、=b;i+) printf("%4d",i); if(i=7*k-a) printf("n");k+;printf("n*n");printf("n"); int leap (int year)if(year%4=0&&year%100!=0|year%400=0)return 1;else return 0;int days_month (int month,int year)if(month=1|month=3|month=5|month=7|month=8|month=10|month=12)

8、 return 31;if(month=4|month=6|month=9|month=11)return 30;if(month=2&&leap(year)=1) return 29;else return 28;int firstday(int month,int year)int W;W=(1+2*month+3*(month+1)/5+year+year/4+year/400-year/100)%7+1; return W;void h()int i,j=1,k=1,a,b,month,year,g; printf("n 輸入任意年 :n"); sc

9、anf("%d",&year);for(g=0;g<=11;g+)month=g+1;b=days_month(month,year); a=firstday (month,year); printf("%d 月 n",month);printf("f*n");printf(" Sun Mon Tue Wed Thu Fri Sat n"); if(a=7)for(i=1;i<=b;i+) printf("%4d",i); if(i%7=0) printf("n&q

10、uot;);j=1;k=1;if(a!=7)while (j<=4*a)printf(" "); j+; for(i=1;i<=b;i+) printf("%4d",i); if(i=7*k-a) printf("n");k+;printf("n*n");printf("n"); void main()for(;) switch(menu_select() case 1: printf(" 輸入年月日計算星期幾 n");f(); break;case 2: printf("打印任意日歷n");g();break;case 3:printf(" 打印任意年歷 n");h();break;case 4:printf(" 謝謝使用 !n");exit(0);int menu_select()char S;int cn;printf("1. 輸入年月日計算星期幾 n");printf("2. 打印任意月歷 n");printf("3. 打印任意年歷 n&q