第1个回答 2012-03-25
#include <stdio.h>
void main()
{
int count1=0,count2=0;
char letter;
do
{
letter=getchar();
if('a'<=letter&&letter<='z')
count1++;
if('A'<=letter&&letter<='Z')
count2++;
}while(letter!='\n');
printf("大写字母个数为:%d\n",count2);
printf("小写字母个数为:%d\n",count1);
}