图形上点的运动,使得图形结构发生变化,而有的图形随着点的运动,其变化具有规律性.下面就根据动点运动时引发图形变化的分析,探索图形结构变化规律,从而锁定动点位置,建立合理的解题思路,举例如下:1、以动点变化中的不变因素为桥梁 The movement of the point on the graph makes the change of the graph structure, while some of the graph changes regularly with the movement of the point.From the analysis of the change of the graph caused by the movement of the moving point, the law of the graph structure is explored to lock the movement Point location, to establish a reasonable problem-solving ideas, for example as follows: 1, to change the fixed point of change as a bridge factor