#include <stdio.h>
int main()
{
int i,j,a,b, year,month,day;
long int s,t,total;
char week;
     scanf("%d %d %d",&year,&month,&day);
     for(i=0;i<=year-1;i++)
{
if((i%4==0 && i%100!=0)||(i%400==0))
j=366;
else
{
j=365;
}
s=((i+1)-i)*j;
}
for(a=0;a<=month-1;a++)
{if(i%4!=0)
{
if(a=2)b=28;
else
{
if(a=1||3||5||7||8||10)
b=31;
else
b=30;
}
else
{if((i%4==0 && i%100!=0)||(i%400==0))
{
if(a=2)b=29;
}
else
{
if(a=1||3||5||7||8||10)
b=31;
else
b=30;
}
}
t=((a+1)-a)*b;
}
}
total=(((i+1)-i)*j)+(((a+1)-a)*b)+day;
week=total%7;
if(week=1)
printf("Monday%c\n");   
 if(week=2)
     printf("Tuesday%c\n");
 if(week=3)
     printf("Wednesday%c\n");
     if(week=4)
         printf("Thursday%c\n");
         if(week=5)
             printf("Friday%c\n");
             if(week=6)
                 printf("Saturday%c\n");
                 if(week=7)
                     printf("Sunday%c\n");
     return 0;
}

if（＝＝）

我昨天编的代码也是这个问题，用赋值代替逻辑填入if里面了

..

好像有个蔡勒公式！

啥子泰勒公式？我怎么没听过？

我知道错得很离谱了，该打

逻辑？怎么回事？我不懂了，我才学。

wo 知道错了。呵呵该打啊

#include <stdio.h>
void main ()
{ int y,m,d,c,s,w;    printf("请输入8位年月日,以空格隔开：");  
  scanf("%d%d%d",&y,&m,&d);   
  if (m==1) c=d;   
  else if (m==2) c=31+d;   
  else if (m==3) c=31+28+d;   
  else if (m==4) c=31+28+31+d;   
  else if (m==5) c=31+28+31+30+d;   
  else if (m==6) c=31+28+31+30+31+d;   
  else if (m==7) c=31+28+31+30+31+30+d;   
  else if (m==8) c=31+28+31+30+31+30+31+d;   
  else if (m==9) c=31+28+31+30+31+30+31+31+d;   
  else if (m==10) c=31+28+31+30+31+30+31+31+30+d;   
  else if (m==11) c=31+28+31+30+31+30+31+31+30+31+d;   
  else if (m==12) c=31+28+31+30+31+30+31+31+30+31+30+d;   
  if (m>2)    {if (y%100==0) {if (y%400==0) c=c+1;}   
  else if (y%4==0) c=c+1;}   
  s=(y-1)*365+(y-1)/4-(y-1)/100+(y-1)/400+c;   
  w=s%7;    switch (w)   
  {    case 0: printf("星期日");break;   
case 1: printf("星期一");break;   
 case 2: printf("星期二");break;   
 case 3: printf("星期三");break;   
 case 4: printf("星期四");break;   
 case 5: printf("星期五");break;   
 case 6: printf("星期六");break;      
     printf("\n");    }}这样也可以的！