a_10_7.cpp

C++应用教程原码,里面包含该书中有十三章内容的代码,详细具体

#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
using namespace std;

void main()
{  fstream file("hello.txt",ios::in|ios::out|ios::app);
   if(!file)
    { cerr << "文件打开失败"<<endl;
     exit(-1);
    }
   int count =0;
   char ch;
   file.seekg(0);
   while(file.get(ch))
   { cout << ch;
     if ((ch=='\n')||(ch==' '))
		 ++count;
   }
   if (ch!='\n') ++count;
   file.clear();
   file <<endl<< "共有单词"<<count<<"个";
   file.close();
   cin.get(); //等待结束，以便调测程序，可以删除

}