Parallel Programming-Concurrent Collections

备忘：asp.net平台下线程安全集合类。

	Class	Description
	BlockingCollection<T>	Provides blocking and bounding capabilities for thread-safe collections that implement IProducerConsumerCollection<T>.
	ConcurrentBag<T>	Represents a thread-safe, unordered collection of objects.
	ConcurrentDictionary<TKey, TValue>	Represents a thread-safe collection of key/value pairs that can be accessed by multiple threads concurrently.
	ConcurrentQueue<T>	Represents a thread-safe first in-first out (FIFO) collection.
	ConcurrentStack<T>	Represents a thread-safe last in-first out (LIFO) collection.
	OrderablePartitioner<TSource>	Represents a particular manner of splitting an orderable data source into multiple partitions.
	Partitioner	Provides common partitioning strategies for arrays, lists, and enumerables.
	Partitioner<TSource>	Represents a particular manner of splitting a data source into multiple partitions.