如何在 C++ 中將文字附加到文字檔案?


這是一個將文字附加到文字檔案中的 C++ 程式。

演算法

Begin
   Open that file a1.txt as output file stream class object to perform
   output operation in append mode using fout file reference.
   If the file exists then
      Appending text to that file.
   Close fout.
   Open the file “a1.txt” for reading the content of the file.
   Extracting the text from file and printing the text.
End.

示例程式碼

 線上演示

#include<iostream>
#include<string>
#include<fstream>
using namespace std;
int main() {
   fstream f;
   ofstream fout;
   ifstream fin;
      fin.open("a1.txt");
      fout.open ("a1.txt",ios::app);
   if(fin.is_open())
      fout<<" tutorials point";
      cout<<"\n Data has been appended to file"<<endl;
      fin.close();
      fout.close();
      string word;
      f.open("a1.txt");
      while (f >> word) {
         cout << word << " ";
      }
      return 0;
}

輸出

Data has been appended to file

更新於: 2019 年 7 月 30 日

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