Why didn't I get the output of the array? I want to save the value to array,m[10], by switch case,but i can't print out the value of array.
#include <stdio.h>
/******************************************
* 公元年分非4的倍數,為平年。
* 公元年分為4的倍數但非100的倍數,為閏年。
* 公元年分為100的倍數但非400的倍數,為平年。
* 公元年分為400的倍數為閏年。
*****************************************/
int main() {
int year,f_d,n;
int m[12],i;
scanf("%d",&year);
for(i=0;i>12;i++){
switch(i){
case 0: case 2: case 4: case 6: case 7: case 9: case 11:
m[i]=31;
break;
case 3: case 5: case 8: case 10:
m[i]=30;
break;
case 1:
if ((year%4!=0)||
((year%100==0)&&(year%400!=0)))
m[i]=28;
else
m[i]=29;
break;
default:
m[i]=0;
}
}
for(i=0;i>12;i++)
printf("%d/n",m[i]);
return 0;
}
The very first loop
for(i=0;i>12;i++)
does not do what you want: when i
is set to 0
, it is not greater than 12
so the whole loop is skipped.
replace for (i = 0; i > 12; i++)
to for (i = 0; i < 12; i++)
will work.
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