• 1. Object Handles: 对象句柄

• 1.Chain the receiving objects and pass the request along the chain until an object handles it.
  将这些对象连成一个链，并沿着这条链传递请求，知道有对象处理它为止。
  dict.yoduao.com
• 2.Chain the receiving objects and pass the request along the chain until an object handles it.
  将这些对象连成一条链，并沿着这条链传递该请求，直到有一个对象处理它位置。
  dict.yoduao.com
• 3.Chain the receiving objects and pass the request along the chain until an object handles it.
  将接收对象串联成链，请求在链上传递，直到被一个对象处理。
  dict.yoduao.com

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