C# Task WaitAll和WaitAny

Task 有靜態方法WaitAll和WaitAny，主要用於等待其餘Task完成後作一些事情，先看看其實現部分吧：數組 public class Task : IThreadPoolWorkItem, IAsyncResult, IDisposable { //Waits for all of the provided Task objects to complete execution.

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