how to set ' " ' in QString

[victor wang]

Hi All,
I'm using qt5.5 on my computer.
And I try to set a command like bellow.

/usr/sbin/wpa_cli -i wlan0 set_network psk '"iPhone"'

So I write this way in my program.

QString wifi = "iPhone";
QString command = "/usr/sbin/wpa_cli -i wlan0 set_network psk '\""+wifi+"\"'";
QString test ="hello";
qDebug()<<command;

But i will get the output like bellow.

/usr/sbin/wpa_cli -i wlan0 set_network psk '\"iPhone\"'

Is that ' \ ' have to put behind the ' " '?
Thanks in Advanced!

[jsulm]

@victor-wang Just print out your string with

std::cout << command;

qDebug is for debugging and prints out the strings like you see them in the code.

[victor wang]

@jsulm
It will give me this error when I compile.

 error: 'cout' is not a member of 'std'
 std::cout << command;
 ^

[jsulm]

@victor-wang Well, there is documentation you could read to solve the problem (note: cout is part of C++ standard library): http://en.cppreference.com/w/cpp/io/cout ...
You need to include <iostream> header file:

#include <iostream>

[victor wang]

@jsulm
Thanks I had read the document and it work great!

[Devopia53]

@victor-wang

To added to @jsulm, you can use qPrintable() instead of std::cout.

like this:

qDebug() << qPrintable(command);

or

qDebug() << command.toLocal8Bit().constData();

[Chris Kawa]

or

qDebug().noquote() << command;

[victor wang]

@Devopia53
Thanks! I think this is more familiar to me.

[victor wang]

@Chris-Kawa
Thanks for the reply.
I can do this too!