本文通过对质点在有心力场中运动形式、运动特征、运动规律的分析,讨论质点在有心力中的运动学和动力学规律,并由开普勒定律为依据,对椭圆做面积分和周期积分导出牛顿万有引力定律,或者先假定万有引力F=GMmr~k 后通过确定k的即可。 In this paper, we analyze the kinematics and dynamics of the particle in the core force by analyzing the motion form, motion characteristics, and motion law of the particle in the centered force field. Based on Kepler’s law, the ellipse is divided into regions and periods. Integral derivation of Newton’s law of universal gravitation, or assuming that the universal gravitation F=GMmr~k can be determined by k.