《红楼梦》第四回捉到的“护官符”，通过描述当地大旗名应之家的低谚口碑，告知办事判案须及早回避的权势范围。其实，在封建官场上，不仅需要像应大府贾老爷那样的“护官”。甚至需要提防防不胜防的杀身之祸。特别是功臣良将，常免不了乌尽弓藏，免死狗烹的下场。宦海沉浮，? The “escort officer” captured in the fourth issue of “Dream of Red Mansions” tells the scope of power that the case should be avoided as early as possible by describing the low proverb reputation of the local flag holder. In fact, in the feudal officialdom, not only needs to be like the grandmaster Royal Jia that kind of “escort officer.” Even need to beware of accidental killings. In particular, heroic hero, often can not help but do not bow Wu Tibet, dead dog cooking end. Huanhai ups and downs,?