C语言程序设计教程（第三版）课后习题9.10 （C语言代码）the most simple or simplest?

解题思路:

注意事项:

参考代码:

#include<stdio.h>
int main()
{
         char ch;
         while(~scanf("%c",&ch))
         {
          if((ch>=65&&ch<=90)||(ch>=97&&ch<=122))
              printf("%c",ch+1);
          else printf("%c",ch);
         }
return 0;
}