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The above example shows the deletion of a rule with a source address of 192.168. 1.146 and an action of DROP in the INPUT chain in the filter table.林聪恢复了紊乱的心绪，大大方方地抬头看着他脸，笑着用力点头道：嗯。Let me explain the role of these classes: MySubject class is our main object, Observer1 and Observer2 are objects that depend on MySubject, and Observer1 and Observer2 must change when MySubject changes. The AbstractSubject class defines a list of objects to be monitored, which can be modified: add or delete monitored objects, and when MySubject changes, it is responsible for notifying the objects that exist in the list. Let's look at the implementation code:サブリミナル 東幹久 森本レオ英台恢复女儿装 ，兰麝满身世无双 。方知英台是女郎 ，情定三生拜高堂。多情自古多离伤 ，父母之命打鸳鸯 。楼台相会绝情殇，化为蝴蝶飞成双 。今人尤伤情意长 ，梁祝化蝶千古唱…杨长帆正色道，拿着钱去买生发的药吧。黄豆明年二月要参加大比，是不可能回去的，因此脸拉老长，眼巴巴地瞧着兄弟姊妹们乐。