What's the @ in front of a string in C#?

Question

This is a .NET question for C# (or possibly VB.net), but I am trying to figure out what\'s the difference between the following declarations:

string hello =          


        

Answer 1

This is a verbatim string, and changes the escaping rules - the only character that is now escaped is ", escaped to "". This is especially useful for file paths and regex:

var path = @"c:\some\location";
var tsql = @"SELECT *
            FROM FOO
            WHERE Bar = 1";
var escaped = @"a "" b";

etc