在学习小提琴的整个过程中，是伴随着改毛病的进程。毛病因人而异，各有不同，左手的、右手的；太软的、太硬的习惯性的或不定型的等等。改毛病的问题，自己深有体会，在兆斤毫的教学中也是很重要的一块内容。尤其在听林老师的课中，对林老师教学生改毛病的思想和方法经常思考 In the whole process of violin learning, is accompanied by the process of hair changes. Problems vary from person to person, each with a different, left-handed, right-handed; too soft, too rigid habitual or unstructured and so on. To rectify the problem, he deeply understands that it is also a very important part in teaching. Especially in the lesson of listening to teacher Lin, he often thinks about the thought and method of teaching teacher Lin