In the case of the first type of buy and sell points, it is best to operate the first type of buy and sell points. Of course, the risk is proportional to the opportunity. The second type of buy and sell points is a supplement to the first type of buy and sell points. Operating the second type of buy and sell points belongs to the right side operation and is relatively safe. However, in the case of small to large, operating the second type of buy and sell points is the best, because in this case, there is no first type of buy and sell point at this level~