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The intermediary mode is also used to reduce the coupling between classes, because if there is a dependency relationship between classes, it is not conducive to the expansion and maintenance of functions, because as long as one object is modified, other related objects have to be modified. If you use the mediator mode, you just need to care about the relationship with the Mediator class, the relationship between specific classes and the scheduling to the Mediator, which is a bit like the spring container. Let's look at the picture first:3.126. Channel change signal: the right arm extends horizontally forward, the palm is left, and the right arm swings horizontally to the left;这有什么？《白发魔女传》马上就要引来大高.潮，不是紫月剑一本新书能撼动的。为了保全你，还费心思将你托付给荣郡王。　　魁拔纪元1664年，天神经过精确测算后，在第六代魁拔苏醒前一刻，对其进行了一次核武级打击。但谁都没有想到，已经悄然实现了自身进化的新一代魁拔，成功地逃脱了致命一击……身患绝症的李阎，机缘巧合之下进入光怪陆离的阎浮世界，凭借着一身硬功夫一步步成为强者。而在行走于一个个阎浮世界的过程中，他也开始发现这个世界真正的秘密。