万年历 c语言大作业

C大作业万年历

#include "stdio.h"

#include

#include

int dayofyear[2]={365,366};

int dayofmonth[2][12]={{31,28,31,30,31,30,31,31,30,31,30,31}, {31,29,31,30,31,30,31,31,30,31,30,31}};

//是否是瑞年

int isleapyear(int year)

{

if (0==year%100 && 0==year%400 || 0!=year%100 && 0==year%4) return 1;

else

return 0;

}

//公元一月一号到公元某年某月的总天数

int alldays(int y,int m)

{

int a,b,c=0;

for (a=m;a>1;a--)

c=c+dayofmonth[isleapyear(y)][a-2];

for (b=1;b

c=c+dayofyear[isleapyear(b)];

return c;

}

//公元一月一号到公元前某年某月的总天数

int days(int y,int m)

{

int a,b,c=0;

for (a=m;a<=12;a++)

c=c+dayofmonth[isleapyear(y)][a];

for (b=y+1;b<0;b++)

c=c+dayofyear[isleapyear(b)];

return c;

}

//输出到屏幕

void outputtoscreen(int year,int month,int i,int l)

{

int j,k;

printf("****第%d年***第%d月****\n",year,month);

printf(" 日一二三四五六\n");

if (l==6)

{

for (k=1;k<=dayofmonth[isleapyear(year)][month-1];k++)

{

printf("%4d",k);

if ((i+k+1)%7==0)

printf("\n");

}

}

else

{

for (j=0;j

printf(" ");

for (k=1;k<=dayofmonth[isleapyear(year)][month-1];k++)

{

printf("%4d",k);

if ((i+k+1)%7==0)

printf("\n");

}

}

printf("\n\n");

}

//输出到文件

void outputtofile(FILE *fp,int year,int month,int i,int l) {

int j,k;

fprintf(fp,"****第%d年***第%d月****\n",year,month);

fprintf(fp,"日\t一\t二\t三\t四\t五\t六\n");

if (l==6)

{

for (k=1;k<=dayofmonth[isleapyear(year)][month-1];k++)

{

fprintf(fp,"%d\t",k);

if ((i+k+1)%7==0)

fprintf(fp,"\n");

}

}

else

{

for (j=0;j

fprintf(fp,"\t");

for (k=1;k<=dayofmonth[isleapyear(year)][month-1];k++)

{

fprintf(fp,"%d\t",k);

if ((i+k+1)%7==0)

fprintf(fp,"\n");

}

}

fprintf(fp,"\n\n");

}

//查询一个月日期

int onemonth()

{

FILE *fp;

int i,l;

int choice;

int year,month;

system("cls");

fp=fopen("d:\\onemonth.txt","w");

printf("\n");

printf("\t请输入要查询的年份和月份：\n");

scanf("%d%d",&year,&month);

if (year>0)

i=alldays(year,month);

else if (year<0)

i=days(year,month);

else

{

printf("error\n");

return (0);

}

l=i%7;

outputtoscreen(year,month,i,l); //调用输出到屏幕函数printf("\t请选择是不是要输出到文本：\n");

printf("1: 是！\n");

printf("2: 否！\n");

scanf("%d",&choice);

if(choice==1) //输入到文件

{

outputtofile(fp,year,month,i,l); //调用输出到文件函数}

else

return (0);

fclose(fp);

getch();

}

//查询一年的日期

int oneyear()

{

FILE *fp;

int i,l;

int year,month;

int choice;

system("cls");

fp=fopen("d:\\oneyear.txt","w");

printf("\t请输入要查询的年份:\n");

scanf("%d",&year);

for (month=1;month<13;month++)

{

if (year>0)

i=alldays(year,month);

else if (year<0)

i=days(year,month);

else

{

printf("error\n");

return (0);

}

l=i%7;

outputtoscreen(year,month,i,l); //调用输出到屏幕函数}

printf("\n\n");

printf("\t请选择是不是要输出到文本：\n");

printf("1: 是！\n");

printf("2: 否！\n");

scanf("%d",&choice);

if (choice==1) //输入到文件

{

for (month=1;month<13;month++)

{

if (year>0)

i=alldays(year,month);

else if (year<0)

i=days(year,month);

else

{

fprintf(fp,"error\n");

return (0);

}

l=i%7;

outputtofile(fp,year,month,i,l); //调用输出到文件函数}

}

else

return (0);

fclose(fp);

getch();

}

//查询某天是周几

int oneday()

{

int i,l;

int year,month,day;

system("cls");

printf("\n\n\t请输入要查询的日期\n");

scanf("%d%d%d",&year,&month,&day);

if (year>0)

i=alldays(year,month);

else if (year<0)

i=days(year,month);

else

{

printf("error\n");

return (0);

}

l=(i+day)%7;

printf("\n\n\n\n\t您查询的内容结果是\n\n");

printf("%d年%d月%d日是星期%d\n",year,month,day,l);

getch();

}

//查询一段时间的

int somemonth()

{

int year1,year2;

int month1,month2;

int year,month;

int i,j,k,l;

int count,choice;

int temp;

FILE *fp;

system("cls");

fp=fopen("d:\\somemonth.txt","w");

printf("\n\n\t请输入起始日期:\n");

scanf("%d%d",&year1,&month1);

printf("\n\n\t请输入终止日期:\n");

scanf("%d%d",&year2,&month2);

year=year1;

month=month1;

if (year1>year2 || (year1==year2 && month1>month2))

{

temp=year1;

year1=year2;

year2=temp;

temp=month1;

month1=month2;

month2=temp;

}

if (year2>=year1 && year1!=0 && year2!=0)

{

if ( year1>0 && year2>0) //以下为输入到屏幕

{

i=alldays(year1,month1);

j=alldays(year2,month2);

count=i;

for (k=0;k

{

l=i%7;

outputtoscreen(year1,month1++,i,l);

i=alldays(year1,month1);

if (year1==year2 && month1>=month2+1)

break;

if (month1>12)

{

month1=1;

year1++;

}

}

}

printf("\t请选择是不是要输出到文本：\n");

printf("1: 是！\n");

printf("2: 否！\n");

scanf("%d",&choice);

if (choice==1)

{

if ( year>0 && year2>0) //以下为输入到屏幕

{

i=alldays(year,month);

j=alldays(year2,month2);

count=i;

for (k=0;k

{

l=i%7;

outputtofile(fp,year,month++,i,l);

i=alldays(year,month);

if (year==year2 && month>=month2+1)

break;

if (month>12)

{

month=1;

year++;

}

}

}

}

fclose(fp);

}

else

{

printf("error\n");

return (0);

}

getch();

}

void countof2date()

{

int y1,y2,d1,d2,m1,m2;

int i,j,k,l=0;

system("cls");

printf("\n\n");

printf("\t请输入一个日期：\n");

scanf("%d%d%d",&y1,&m1,&d1);

printf("\t请输入另一个日期：\n");

scanf("%d%d%d",&y2,&m2,&d2);

j=d1;

k=d2;

for (m1;m1>1;m1--)

j=j+dayofmonth[isleapyear(y1)][m1-1]; // 将日期1归于一月一号；

for (;y1

l=l+dayofyear[isleapyear(y1)];

for (m2;m2>1;m2--)

k=k+dayofmonth[isleapyear(y2)][m2-1]; // 将日期2归于一月一号；

i=l+k-j; // 计算两年年初的日期之差；

printf("%d\n",i);

getch();

}

int thedayafterN()

{

int indays;

int i,l;

int year,month,day;

system("cls");

printf("\n\n\t请输入一个日期：\n");

scanf("%d%d%d",&year,&month,&day);

printf("\t请输入要经过的天数：\n");

scanf("%d",&indays);

if (year>0)

i=alldays(year,month);

else if (year<0)

i=days(year,month);

else

{

printf("error\n");

return (0);

}

l=(i+indays+day)%7;

while (indays>=dayofyear[isleapyear(year)])

{

indays-=dayofyear[isleapyear(year++)];

}

while (indays>=dayofmonth[isleapyear(year)][month])

{

indays-=dayofmonth[isleapyear(year)][month++];

}

printf("\n\n\n\n\t您查询的内容结果是\n\n");

printf("****%d年***%d月***%d日***星期%d****",year,month,indays+day,l);

getch();

}

int mainmenu()

{

int choice;

system("cls");

printf("\n");

printf(" \t\t请输入要选择的服务项：\n\n");

printf("** 1: 查询某年中的某个月\n");

printf("** 2: 查询某年\n");

printf("** 3: 查询某天是周几\n");

printf("** 4: 查询一段时间日期\n");

printf("** 5: 查询两个日期间共有多少天\n");

printf("** 6: 输入一个日期，和一个整数n，查询n天以后的日期\n");

printf("** 0: 退出\n\n\n\n\n\n");

printf("您要查询的内容是：");

scanf("%d",&choice);

return (choice);

}

void choose()

{

int sign=0;

for(;;)

{

system("cls");

switch(mainmenu())

{

case 1:onemonth();break;

case 2:oneyear();break;

case 3:oneday();break;

case 4:somemonth();break;

case 5:countof2date();break;

case 6:thedayafterN();break;

case 0:

{

sign=1;

break;

}

}

if(sign==1)

break;

}

}

void main()

{

printf("\n\n\n\n\n\n\n\t\t **************************************\n\n"); printf("\t\t\t 欢迎使用万年历查询器!!\n\n");

printf("\t\t **************************************\n\n\n\n");

printf("\t\t\t\t 请按回车键继续!!\n");

getchar();

choose();

}