behavior protocol 行为协议
Any behavior of the class must be implemented as protocol methods.
类的任何行为都必须作为协议方法实现。
A particular coordination protocol provides a definition of the behavior requirements and the operations supported for completion processing.
一个特定的协调协议将提供对支持完成处理所需的行为要求和操作的定义。
Everything else in the class is the same, including the behavior that models the service protocol.
类中的其它所有事情都是一样的，包括对服务协议进行建模的行为。
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