Generally, the source code you download has description files of its related documents.

Secondly, you can install IIS. You can search for a lot of IIS-related installation and settings on Baidu. It is equivalent to setting your computer as a server. After setting up, enter it in the IE address bar. :127

.0.0.1 or you can browse the web page effect.

I would like to recommend a website to you, (Source Code Home), which has many source codes to download, including ASP, PHP, .NET, etc. You can first find some simple source codes and study them first.

Hope to adopt