假设我有以下类(class):classSomeClass{privateTaskCompletionSource_someTask;publicTaskWaitForThing(){_someTask=newTaskCompletionSource();return_someTask.Task;}//Othercodewhichcalls_someTask.SetResult(..);}然后在别处，我调用//Somecode..awaitsomeClassInstance.WaitForThing();//Somemorecode在调用_someTask.SetResult(..)之