#include <iostream>
using namespace std;
int main()
{
char str[81];
int i=0,num=0;
bool isWord=false;
cout << "请输入单词:";
gets(str);
while(str[i]!='\0')
{
if (str[i]==' ') isWord=false;
else if (isWord==false)
isWord=true,num++;
++i;
}
cout<<"there are "<<num<<" words in the line"<<endl;
return 0;
}
