YES if a responder object handled the action message, no if no object in the responder chain handled the message.
如果接受对象接收到事件信息就返回YES，在响应链中没有对象响应消息就返回NO。
If a responder object returns YES from this method, it can thereafter join the responder chain and receive touch events and action messages.
如果调用对象从这个方法返回YES，那他就可以加入到事件链中并且可以接收到触摸事件和其他消息。
We add it as the responder of the AsyncToken object, get the response data, and transform it into a Flex variable type. (See Listing 9.)
我们将其作为AsyncToken对象的响应者添加，获得响应数据并将其转变为一个Flex变量类型(参见清单9)。
Any input is captured by the first responder, which tends to be the object that the user is directly interacting with.
任何输入都是由第一响应者先捕捉到的，它一般是与用户直接交互的对象。
Any input is captured by the first responder, which tends to be the object that the user is directly interacting with.
任何输入都是由第一响应者先捕捉到的，它一般是与用户直接交互的对象。
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