2-3.cpp

完全正确的thinking in c++第二章习题答案

# include<string>
# include<iostream>
# include<fstream>
using namespace std;
int main()
{string word;
int sum=0;
ifstream in("2-3.cpp");
while (in>>word)
sum=sum+1;
cout<<"sum="<<sum<<endl;
return 0;
}