CodeProject:免費開原始碼交流社群是一個由軟體開發和設計人員組成的一個分享免費開源程式設計程式碼的社群網站，使用者可以在這裡學習、分享、探討有關於軟體程式設計方面的話題。

MSDN主要是開發文件，技術文章和函式使用示例程式碼，開發工程中遇到不懂得函式之類的可以及時到MSDN查詢，MSDN側重於開發;而CodeProject 主要是開原始碼,上面有很多高手寫好的程式碼可以借鑑，CodeProject側重於應用。

CodeProject社群擁有成千上萬的程式設計文章和程式設計教程，彙集世界各地的優秀程式設計開發人員，如果你是學習程式設計的使用者恰好英語也很厲害，那麼在這個社群混絕對能夠提高你的程式設計開發能力。

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