How do i check out from code.google

The source is located on Google project. It's a .net proj开发者_如何学Cect.

You need to download and install Mercurial. Mercurial is a distributed revision control tool.

Your formatting is wonky, but you answered your own question. To check out a project that's in Mercurial, you type

hg clone https://somewhere.googlecode.com/hg/ somewhere

at the command line. This expects that you have Mercurial installed and it is on the executable path.