Question

这是我到目前为止所拥有的...... 这个程序的目的是显示文件中的单词数，并获得同一文件的单词数中的字母数。

    #include <iostream>
    #include <fstream>
    #include <string>

    using namespace std;

    int main()
    {
      int numberOfWords = 0, i = 0;
      char letters = 0;
      string line;

      ifstream myFile;
      myFile.open("text.txt");

     //I got this to work, it displays the number of words in the file
    if (myFile.is_open())
    {
        while (!myFile.eof())
    {
        myFile >> line;
        i++;
    }
    numberOfWords = i;

    //this is where I'm having trouble. I can't get this code to work for it to display the number of letters in the file.
    while (!myFile.eof())
    {
        //cout << line << endl;
        letters = line.length();
        letters++;
    }
}
        myFile.close();

        cout << "There are " << numberOfWords << " words in the textfile\n"
            << "There are " << letters << " letters in those " <<       numberOfWords << " words\n";

        cin.get();

        return 0;

}

Answer 1

你做错了。

 #include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main()
{
  int numberOfWords = 0, i = 0;
  int letters = 0;
  string line;

  ifstream myFile;
  myFile.open("text.txt");

 //I got this to work, it displays the number of words in the file
if (myFile.is_open())
{
    while (!myFile.eof())
    {
        myFile >> line;
        letters += line.length();
        //letters++;
        i++;

    }
numberOfWords = i;

//this is where I'm having trouble. I can't get this code to work for it to display the number of letters in the file.
//while (!myFile.eof())
//{
    //cout << line << endl;

//}
}
myFile.close();

    cout << "There are " << numberOfWords << " words in the textfile\n"
        << "There are " << letters << " letters in those " <<       numberOfWords << " words\n";

    cin.get();

    return 0;
}

在遍历线路时，只计算单词的字母数

如何读取文件中的字符数？

1 个答案: