Several sites that provide SVN source code management for free

China:
Http://www.coollittlethings.com/
You only need to register and use it. It is fast and uses HTTP for transmission without the Web management function.

Foreign countries:

Http://code.google.com/hosting/

It is provided by Google and can be used immediately upon application. It uses https for transmission, featuring high security and reliability, and provides Web management functions.

Http://developer.novell.com/wiki/index.php/Project_Hosting

Novell provides the service, which requires review after application, and is fast. It uses https for transmission, featuring high security and reliability, and provides Web management functions.

We recommend that you use the one provided by Google.