C语言基础编程求解答

Question

#include<stdio.h>
int main()
{
    ch = getchar();
     if ((ch>='A')&&(ch<='Z');
         printf("%d\n",ch);
     else
         ch=ch-32;
         printf("%d\n",ch);
         return 0;
}

错在哪里了，求解答

Answer 1

if语句后面的分号删掉
else要加大括号，将下面两行括起来

#include<stdio.h>
int main()
{
    ch = getchar();
     if ((ch>='A')&&(ch<='Z'))
         printf("%c\n",ch);
     else if(ch>='a' && ch<='z')
      {
         ch=ch-32;
         printf("%c\n",ch);
      }
         return 0;
}