Item 8: Prefer Query Syntax to Loops(Effective C#)

　　C# began as an imperative language. It continues to include all the features that are part of that heritage. It’s natural to reach for the most familiar tools at your disposal. However, those tools might not be the best tools. When you find yourself writing any form of a looping construct, ask yourself if you can write that code as a query. If the query syntax does not work, consider using the method call syntax instead. In almost all cases, you’ll find that you create cleaner code than you would using imperative looping constructs.