Litchi micro class is good. The customer service of litchi micro-class is good, and the problems I encounter can basically be solved. Secondly, the entry threshold of litchi micro-course is low, so you can start the course by logging in with your mobile phone account on WeChat. Finally, there is a content integration platform, which is actually quite good, but I don't know how to include my own courses on it. At present, it is found that most of the courses on the page are big V courses, and some are still relatively small or not so well-known.