如何计算平均值在文档

简介：Li Zicheng always fought in three battle formations. The first formation was the hungry people who served as cannon fodder, the second formation was the new recruits, and the third formation was the main force under his command. The formation method of his main force was also different from that of the official army. The official army was generally The infantry is in the middle, with cavalry covering both sides. This is also the traditional Chinese dynasty's formation and marching method.