点的轨迹问题是平面解析几何中的一个重要内容,对于大多数学生来讲都是很难解决的,如果把问题与立体几何结合即探求空间某点的轨迹,可以说是难上加难!在此本文仅以几个例子说明空间点的轨迹问题的解决方法,以期能抛砖引玉,给广大学生一些启示。 The point trajectory problem is an important part of the plane analytic geometry. It is very hard for most students to solve. If we combine the problem with the three-dimensional geometry, we can find it difficult to find the trajectory of a point in space. In this paper, only a few examples to illustrate the trajectory of space solutions to the problem, with a view to throwing bricks to give some inspiration to the students.