run C# in sublime text

C#Sublime

{
  "cmd" : ["csc", "-nologo", "$file", "&&", "${file_base_name}.exe"],
  "path": ""
  "selector" : "source.cs",
  "shell":true,
  "file_pattern": ["*.cs" , "*.csx"],
  "working_dir" : "$file_path"
}

// Hello World! program
namespace HelloWorld
{
    class Hello {         
        static void Main(string[] args)
        {
            System.Console.WriteLine("Hello World!");
        }
    }
}