C language programming third edition Su Xiaohong Exercise 5.8 Enter a character to determine whether it is a number, uppercase letter, lowercase letter, space, or other

#include<stdio.h>
int main()
{
char ch;
printf(“输入一个字符：\n”);
ch=getchar();
if(ch>=‘a’ || ch<=‘z’)
printf("%c\n",ch);
else if(ch>=‘A’ || ch<=‘Z’)
printf("%c\n",ch);
else if(ch=’ ')
printf("%c\n",ch);
else
printf(“other!\n”);
return 0;
}