判断一段字符串中有多少单词(以空格为标准)

#include <stdio.h>
#include <string.h>

int wordscount(const char *s)
{
char *p = (char*)s;
int count = 0;

while (*p != '/0')
{
/*去掉空格*/
while (*p == ' ')
{
++p;
}
/*单词计数*/
if (*p != '/0')
{
++count;
}
/*跳去单词*/
while (*p != ' ' && *p != '/0')
{
++p;
}
}

return count;
}

int main()
{
char s[100];
printf("please input the strings:/n");
gets(s);
printf("%d/n",wordscount(s));

return 0;
}