动态问题,是指除了固定不变的点、线、线段、线形关系外,渗透了一些动态的点所构成的问题,给静态的几何问题赋予了新的活力,使题意变得更加新颖、更加灵活.解答这类问题的基本策略是:(1)动中求静,化变量为常量,即在运动变化中探索问题中的不变性;解动态型考题的总体思路是化动为静.关键在于从相对静止的瞬间, Dynamic problem refers to the problem of infiltration of some dynamic points in addition to the fixed points, lines, line segments and linear relationships, which gives new dynamism to static geometric problems and makes the topic more novel. More flexible.To solve these problems, the basic strategy is: (1) static and dynamic variables, variables as constants, that is, in the movement to explore the problem of invariance; dynamic solution of the general idea is dynamic. The key is from the relatively static moment,