教程列表：

Part 29 Concat operator in LINQ

Part 28 Generation Operators in LINQ

Part 27 Union, Intersect and Except operators in LINQ

Part 26 Set operators in LINQ

Part 25 Cross Join in LINQ

Part 24 Left Outer Join in LINQ

Part 23 Difference between group join and inner join in linq

Part 22 Inner Join in LINQ

Part 21 Group Join in LINQ

Part 20 Element Operators in LINQ

Part 19 Group by multiple keys in linq

Part 18 GroupBy in LINQ

Part 17 AsEnumerable and AsQueryable in LINQ

Part 16 Cast and OfType operators in LINQ

Part 32 LinqPad Tutorial

Part 7 Projection Operators in LINQ

Part 15 Conversion Operators in LINQ

Part 31 Quantifiers in LINQ

Part 30 SequenceEqual Operator in LINQ

Part 14 LINQ query deferred execution

Part 13 Implement paging using skip and take operators

Part 12 Partitioning Operators in LINQ

Part 11 Ordering Operators in LINQ II

Part 10 Ordering Operators in LINQ

Part 9 Difference between Select and SelectMany in LINQ

Part 8 SelectMany Operator in LINQ

Part 6 Restriction Operators in LINQ

Part 5 Aggregate function in LINQ

Part 4 LINQ Aggregate Functions

Part 3 Extension Methods in C#

Part 2 Writing LINQ Queries

Part 1 What is LINQ