处理解析几何问题,自然应以解析法为主,这样可以使讨论具有一般性,避免以偏概全的缺陷。但问题的另一面就是思考问题时也应注意数形结合,利用综合几何的直观图形的性质,有时确能省略不少繁复的计算,起到避繁就简,化难为易的作用。 To deal with analytical geometry problems, we should naturally use analytical methods as the main method. This can make the discussion general and avoid partial defects. However, the other side of the problem is that when thinking about problems, we should also pay attention to the combination of numbers and shapes. Using the nature of the intuitive graphics of comprehensive geometry, we can sometimes omit a lot of complicated calculations, and play a role in avoiding complications, simplifying, and making it difficult to change.