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＃i nclude"stdio.h"
void weekday(FILE *);
int leap(int);
int _2000yera(int x)
{
int sum=0;
int i;
if(x>=2000){
for(i=2000;i<x;i++)
{
sum+=(i%4==0&&i%100==0||i%400==0)?366:365;
}
return (sum+6)%7;
}
else{
for(i=x;i<2000;i++)
{
sum+=(i%4==0&&i%100==0||i%400==0)?366:365;
}
return (-sum%7+6)%7;
}
}
void weekday(FILE *fp)
{
int i;
for(i=1;i<=7;i++)
fprintf(fp,"星期%d\t",i);
fputs("\n",fp);
}
int sp(int x,FILE *fp)
{
int i;
for(i=1;i<=_2000yera(x);i++)
fputs("\t",fp);
return i;
}
int month(int ch,int x)
{
switch(ch)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:return 31;
case 4:
case 6:
case 9:
case 11:return 30;
case 2:return leap(x);
}
}
int leap(int x)
{
return ((x%4==0&&x%100!=0)||x%400==0)?29:28;
}
int printyear(int x,FILE *fp)
{
int mon,i=1,j,day;
fputs("*********1月*********",fp);
fputs("\n",fp);
weekday(fp);
fputs("\n",fp);
i=sp(x,fp);
for(day=1,mon=1;mon<=12;mon++)
{
for(j=1;j<=month(mon,x);j++,i++,day++)
{
fprintf(fp,"%d\t",j);
if(i%7==0){fputs("\n",fp);day=1;}
}
if(mon<12){
fputs("\n",fp);
fprintf(fp,"*********%d月*********\n",mon+1);
weekday(fp);
fputs("\n",fp);
i=1;
i+=day-2;
for(;day-2>0;day--)
fputs(" \t",fp);}
}
}
main()
{ FILE *fp;
int x,exit;
if((fp=fopen("d:\\en.txt","a+"))==NULL)
{
puts("不能打开此文件");
return 0;
}
printf("year:");
scanf("%d",&x);
printyear(x,fp);
rewind(fp);
printf(
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