include<stdio.h>
include <string.h>
int main (void)
{
printf("请输入一段字符:");
char a[80];
gets(a);
int i=0;
int num,int num1,int num2,int num3,int num4;
num=num1=num2=num3=num4=0;
while(a[i])
{
if(a[i]>='a'&&a[i]<='z')
num++;
else if(a[i]>='A'&&a[i]<='Z')
num1++;
else if(a[i]>='0'&&a[i]<='9')
num2++;
else if(a[i]=='\40')
num3++;
else
num4++;
i++;
}
printf("空格:%d个\n",num3);
printf("数字:%d个\n",num2);
printf("小写字母:%d个\n",num);
printf("大写字母:%d个\n",num1);
printf("其他字符:%d个\n",num4);
return 0;
}