春秋时,郑庄公得到鲁国和齐国的支持,打算讨伐许国(国都在今河南许昌市)。此事记载于《左传·隐公十一年》:那年初夏,郑庄公在宫前检阅军队,发派兵车,做伐许前的准备。老将军颍考叔和贵族出身的青年将军公孙子都,为争夺兵车吵闹了起来。颍考叔是一员勇将,一向不服老,拉起兵车转身就跑。公孙子都不肯相让,拔起长戟,飞奔追去, Spring and Autumn Period, Zheng Zhuang Gong Lu State and Qi support, plan to crush Xu country (all in Xuchang City, Henan Province today). The incident is recorded in the “Zuo implicit public eleven years”: early summer of that year, Zheng Zhuang Gong in front of the palace review of the army, sent troops and vehicles, to do before the preparation Xuance. The old general Ying test uncle and aristocrats young general Gongsunzi, competing for the soldiers car up. Ying test uncle is a brave, has always been dissatisfied with the old, pull up the soldier turned and ran. Gongsunzi refused to give up, pull up halberds, galloping chase,