C# 大杀器 - LINQ 所有方法的示例 ｜ .NET & C# Essentials

https://www.bilibili.com/video/BV1Kt421h7qa/

01:14. Where
01:40. OfType
02:24. Skip
02:35. Take
02:42. SkipLast & TakeLast
02:58. SkipWhile & TakeWhile
04:14. Select
04:36. Select with index
05:01. SelectMany
06:41. SelectMany with index
07:04. Cast
07:20. Chunk
07:58. Deferred Execution vs Immediate Execution
10:55. Any
11:20. All
11:44. Contains
11:55. Append & Prepend
12:41. Count
13:34. TryGetNonEnumeratedCount
14:51. Max
15:16. MaxBy
17:02. Min & MinBy
17:19. Sum
17:59. Average
18:06. LongCount
18:20. Aggregate (overload 1)
19:58. Aggregate (overload 2)
20:20. Aggregate (overload 3)
21:43. First & FirstOrDefault
22:34. Single & SingleOrDefault
24:06. Last & LastOrDefault