Then, you have to call BeginInvoke on this delegate object.
然后，你必须在这个委托对象上调用BeginInvoke方法。
Singleton — returns reference to the single instance of the delegate object.
Singleton——返回对委托对象单个实例的引用。
Is it necessary to declare an object as a delegate to use it as such?
有必要声明一个对象作为一个代表这样使用它？
The delegate of the application object.
应用程序的代理对象。
A delegate is an object that contains a reference to a method.
委托是包含有对一个方法的引用的对象。
Your delegate property naturally stores a reference to a single object.
你的代表性自然存储引用单个对象。
Your delegate property naturally stores a reference to a single object.
你的代表性自然存储引用单个对象。
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