302班

#include <stdio.h>

int alphabetic(const char c)
{
 int alp;
  if((c>='a'&&c<='z')||(c>='A'&&c<='Z'))
  {
    alp=0;
  }
  else alp=1;
  return alp;
}

int countWords(const char string[])
{
  int i,wordCount=0;
  int lookingForWord=0;

   for(i=0;string[i]!='\0';i++)
   {
     if(alphabetic(string[i])==0)
  {
   if(lookingForWord==0)
   {
      wordCount++;
      lookingForWord=1;
   }
  }
  else
  {
    lookingForWord=0;
  }
   }

   return wordCount;
}

int main(void)
{
   const char text1[]="Well, here goes!";
   const char text2[]="And here we go...again.";
   int countWords(const char string[]);

   printf("%s-words=%i\n",text1,countWords(text1));
   printf("%s-words=%i\n",text2,countWords(text2));

   return 0;
}

運行圖：