sentinel.cpp

来自「C++&datastructure书籍源码,以前外教提供现在与大家共享」· C++ 代码 · 共 25 行

#include <iostream>
#include <string>
using namespace std;

   // count words in the standard input stream, cin

int main()
{
    const string LAST_WORD = "end";
    
    string word;
    int numWords = 0;                  // initially, no words

    cout << "type '" << LAST_WORD << "' to terminate input" << endl;
    
    cin >> word;
    while (word != LAST_WORD)          // read succeeded
    {   numWords++;
        cin >> word;
    }
    cout << "number of words read = " << numWords << endl;
    
    return 0;
}