What does the @ symbol before a variable name mean in C#? [duplicate]

Possible Duplicate:
What's the use/meaning of the @ character in variable names in C#?

I understand that the @ symbol can be used before a string literal to change how the compiler parses the string. But what does it mean when a variable name is prefixed with the @ symbol?

The @ symbol allows you to use reserved word. For example:

int @class = 15;

The above works, when the below wouldn't:

int class = 15;

The @ symbol serves 2 purposes in C#:

Firstly, it allows you to use a reserved keyword as a variable like this:

int @int = 15;

The second option lets you specify a string without having to escape any characters. For instance the '\' character is an escape character so typically you would need to do this:

var myString = "c:\\myfolder\\myfile.txt"

alternatively you can do this:

var myString = @"c:\myFolder\myfile.txt"