问题
Task.Factory.StartNew() basically receives an Action and returns a Task. In The Async CTP we have TaskEx.Run() which also receives an Action and returns a Task. They seem to do that same thing. Why TaskEx.Run() was introduced ?
回答1:
Anders Hejlsberg talked about that briefly in an interview on Channel9. Apparently, Task.Run is just a shorthand for Task.Factory.StartNew. Its still early CTP days so we're unsure that Task.Run will make it int. I personally hope it won't because it's kind of redundant. :)
回答2:
Stephen Toub covered it in his article. They are the same, one being shorthand for the other.
来源：https://stackoverflow.com/questions/6123630/task-factory-startnew-vs-taskex-run