习题5.8

#include<stdio.h>main(){    char ch;    printf("输入一个字符\n:");    scanf("%d",&ch);    if(ch>=97&&ch<=122)    {        printf("该字符为小写字母");        printf("ch=%c\n",ch);    }    else if(ch>=65&&ch<=90)    {        printf("该字符为大写字母");        printf("ch=%c\n",ch);    }    else if(ch>=48&&ch<=57)    {        printf("该字符为数字");        printf("ch=%c\n",ch);    }    else        if(ch==32)    {        printf("该字符为空格");    }    else    {        printf("该字符为其他字符");    }    }