这取决于你想做什么。这篇微软文章列出了各种场景的优缺点 http://msdn.microsoft.com/ en-us / library / dd547590.aspx [ ^ ]

What type of project should i use for web developement in asp.net
website or web application ?

That depends on what you want to do. This microsoft article lays out the pros and cons of both for various scenarios http://msdn.microsoft.com/en-us/library/dd547590.aspx[^]