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Http://www.freebuf.com/news/67204.htmlPF-Power Forward)Dioscorea cirrhosa contains high units of tannin, which is used for dyeing to protect fibers and prevent fiber damage. In the early days, people took Dioscorea cirrhosa to dye fishing nets, which could enhance the durability of fishing nets and resist corrosion. Red brick with strong local flavor can be dyed with Dioscorea cirrhosa without mordant and has high color fastness.//Technical interview黄豆便扛着虾网进去了。Structural patterns, as the name implies, discuss the structure of classes and objects and are mainly used to deal with the combination of classes or objects. It includes two types, one is class structure pattern, which refers to the combination of interfaces or implementations by inheritance mechanism. The second is the object structure mode, which refers to the realization of new functions by combining objects. It includes adapter mode, bridge mode, decorator mode, combination mode, appearance mode, element mode and agent mode.