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他看这个王大郎就不顺眼起来。大叔随着食堂的夜晚一起经历人来人往，满足食客们的味蕾，也见证了各式人生。而无论夜多深、路多远，大叔还会在食堂里继续倾 听大家的故事。1936年，太行山附近的杂技之乡来了一支日本的杂技表演团体“大和班”，他们前来与当地最为著名的杂技团体“永春班”和“华勇班”切磋技艺，可是竞技的背后却隐藏着很大的阴谋，并借机羞辱中国的国技杂技艺术。大和班通过奸诈手段接连打败了永春班和华勇班。抗日战争爆发，永春班的龙战海和华勇班的凤姑刘奎等人摒弃前嫌，联手抗敌，与大和班在擂台上几次较量，最终战胜了大和班，捍卫了中国杂技的荣誉，并配合八路军凤姑的小叔侯振国，粉碎了鬼子的阴谋。In fact, iptables is not a real firewall. We can understand it as a client agent. Users execute the user's security settings into the corresponding "security framework" through iptables. This "security framework" is the real firewall. The name of this framework is netfilter.Mediator pattern defines a mediation object to encapsulate the interaction between a series of objects. Intermediaries do not need to explicitly refer to each other between objects, thus reducing coupling and independently changing their interaction behavior. The specific structure diagram is as follows:(4) A taillight.