如果将齐与秦视为“放任”与“抑制”的两个极端,此后中国各时期的城市形态则是在这两极之间的摇摆。控制“小异”的尺度不同,将导致城市形态的差异化。作为最主要的公共空间,街道隐藏着自发性的全部变数——既是自由市场的温床,也是聚众滋事的隐患。这一空间的形态可以反映出政府对城市控制的策略和力度。 If we consider Qi and Qin as the two extremes of “letting go” and “restrainment”, then the pattern of cities in each period in China is the swing between these two poles. Control different scales of “small differences” will lead to the differentiation of urban forms. As the most important public space, the streets hide all the variables of spontaneity - both a hotbed of free market and a hidden danger of gathering people. The shape of this space can reflect the government’s strategy and efforts on urban control.