C语言统计单词个数

#include<stdio.h>
#include<string.h>
int main(){
	char s[100],ch;
	int count=0,i=0,j;
	printf("请输入字符串:");
	gets(s);
	while(i<strlen(s)){
		if(!((s[i]>='A'&&s[i]<='Z')||(s[i]>='a'&&s[i]<='z'))){
			i++;
			continue;
		}
		else{
			count++;
			j=i+1;
			while((s[j]>='A'&&s[j]<='Z')||(s[j]>='a'&&s[j]<='z'))
				j++;
			i=j;
		}
	}
	printf("%d",count);
}