[编程入门]字符串分类统计-题解（C语言代码）

解题思路:

注意事项:

参考代码:

//字符串分类统计

#include<stdio.h>

const int maxn = 10001;

int main(){

char str[maxn];

int s = 0, n = 0, o = 0, b = 0, i = 0;

gets(str);

while(str[i] != '\0'){

if(str[i] >= 'A' &&str[i] <= 'Z'||str[i] >= 'a' && str[i] <= 'z')

s++;

else if(str[i] >= '0' &&str[i] <= '9')

n++;

else if(str[i] == ' ')

b++;

else

o++;

i++;

}

printf("%d %d %d %d\n",s,n,b,o);

}