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I just open the c++ and then in the file tab, i select the source file in the new
or in other word just use ctrl + n(hotkey) and after this i paste this code. Does this code still usable? I know the...

Ok, now i saw a code like this:


#include <stdio.h>
#include <iostream>

using namespace std;


int main ()

Do you mean this code:


f you want to open the file and do something with it in your c++ program, using ofstream and ifstream as the code you've provided.


or this:


a_file.close();

Yea, thanks w.chen. But if i want to open the output file when i type open, does that possible?

cin>> op ;
if ( op == "open" ) {
cout<<"this is to test weather the code right ..." ;
}

the error didn't come out again but the message didn't show up even i type open.

I also tried that, but i don't know to check weather the user type open to open the file. I tried this:


char op[6] ;//i put this after using namespace std;...

Hello, I am a beginner. I read this page already, but just one things that I don't understand. How to open the example.txt when i type open? And the code below is the whole code.



#include...