《青蝇》是卫武公刺周幽王听信谗言而伤贤害忠之诗，描写了骊山之难、宗周覆灭的亡国之家，表现了一位肱股老臣对天王宜臼的耿耿忠心，寄寓了一位周王室执政卿士期望周平王以史为鉴。中兴祖业的政治热情，其当作于卫武公率兵救周、“二王并立”之初，即周平王元年（前771年）顷。 “Blue flies” is Wei Wu Gong thorn week King you listen to the words and hurt Yin Xian poetry, described the difficulties of Lishan, Zu week’s destruction of the ruining of the country, showing a brachial veteran of the Unguitable loyalty, Possession of a Zhou royal family, the Secretary of State expectations Wang Ping to learn from history. The political enthusiasm of ZTE ancestors, as WeiWei Gong led his troops to save the week, “two kings and legislature” at the beginning, that is, Zhou Ping Wang Yuannian (before 771) are.