"" representation within a string

Another cool thing you can do with the absolute marker, the @ sign, is you can store multiline strings like this:

string myString = @"This is
                    a multiline string and
                    it will be stored like this.";

Pretty cool, lol.

thank you very much for your help:)

If your string is 'verbatim' (i.e. preceded by the @ character), you can achieve the same thing by doubling the quotes:

 string phrase = @"Mary said ""The weather is nice today""";

You can use the backslash as an escape character to accomplish that. You would write:

    string phrase = "Mary said \"The weather is nice today\"";

The slash followed by the inverted commas signals to the compiler that those inverted commas are not the end of the string and that they should be displayed as text.