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C++

Read

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#include <fstream>

  • ofstream create, write into new file
  • ifstream read the existing file
  • fstream read & write
    #include <fiostream.h>
    int main () {
        ofstream out("out.txt");
        if (out.is_open()) 
       {
            out << "This is a line.\n";
            out << "This is another line.\n";
            out.close();
        }
        return 0;