C语言课程设计—日历显示

#include

#include

#include

char* month[]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nev","Dec"};

char*

week[]={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};

int j_leapyear(int year) //定义函数检测输入年份是否为闰年

{

if((/*year%400==0*/year%4==0&&year%100!=0)||(year%400==0))

return (1);

// else if(year%4==0&&year%100!=0)

// return (1);

else return 0;

}

int month_day(int year,int month) //检测该年月份有多少天

{

int mon_day[]={31,28,31,30,31,30,31,31,30,31,30,31};

if(j_leapyear(year)&&month==2)

return 29;

else return (mon_day[month-1]);

}

int j_week(int year,int month,int day) //检测该天是星期几

{

int d=0,i; //d表示该天在该年份的累计天数

int w;

/* int month_day[]={31,28,31,30,31,30,31,31,30,31,30,31};

if(j_leapyear(year)==1)

month_day[1]=29;

for(i=0;i

d+=month_day[i];

d=d+day;*/

for(i=1;i

d+=month_day(year,i);

d+=day;

w=(year-1)+(int)(year-1)/4-(int)(year-1)/100+(int)(year-1)/400+d;//网上公式

return ((int)w%7);

}

int allyear(int year) //输出全年日历

{

int i,j,b;

printf("\n%d 日历",year);

for(i=1;i<=12;i++)

{

printf("\n\n\t%s\n",month[i-1]);

// printf(" 7 1 2 3 4 5 6 \n");

printf(" S M T W T F S \n");

b=j_week(year,i,1);

for(j=1;j<=month_day(year,i)+b;j++)

{

if(j<=b)

printf(" ");

else if(j-b<10)

printf("%2d ",j-b);

else printf("%2d ",j-b);

//else printf("%2d ",j-b);

if(j%7==0)

putchar('\n');

}

putchar('\n');

}

return 0;

}

void month_print(int year,int month) //输入一个年月，输出这个月的日历

{

int i,c,d;

c=month_day(year,month);

printf("\n\n %d年%d月日历\n",year,month);

printf(" S M T W T F S \n");

d=j_week(year,month,1);

for(i=1;i<=c+d;i++)

{

if(i<=d)

printf(" ");

else printf("%2d ",i-d);

if(i%7==0)

putchar('\n');

}

putchar('\n');

}

int jisuan_day(int year,int month,int day,int x,int y,int z) //输入年月日，输出距x年y月z 日有多少天,星期几，以及是否是公历节日

{

int i,a,b,c=0,d=0,days=0,m=0,n=0,t;

a=year>=x?year:x;

b=year

if(a>b)

{

for(i=b+1;i

c+=j_leapyear(i);

}

else c=0;

if(year!=x)

d=a-b-1;

else d=0;

m=365*d+c;

if(year

{

for(i=month;i<=12;i++)

n+=month_day(year,i);

days=m+n+z-day;

}

else if(year>x)

{

for(i=y;i<=12;i++)

n+=month_day(x,i);

for(i=1;i

n+=month_day(year,i);

days=m+n+day-z;

}

else

{

for(i=month>=y?y:month;i<(month>=y?month:y);i++)

n+=month_day(x,i);

days=abs(day-z)+n; //输出距离y月z日有多少天

}

printf("这天离%d年%d月%d号有%d天\n",x,y,z,days);

t=j_week(year,month,day);

if(t==0) //输出星期几printf("这天星期日");

else if(t==1)

printf("这天星期一");

else if(t==2)

printf("这天星期二");

else if(t==3)