The market is not a casino, and the operation of the market can be carefully planned. When you buy, you must ask yourself, is this a buying point? What level of buying point is this? How is the trend of the big level? How is the distribution of the centers of each level at present? How is the trend of the market? How is the popularity of the sector where this variety is located? The situation of the selling point is similar. The clearer you analyze the situation of the ticket you are operating, the more comfortable you can operate.