Similarly, everyone has a K-line chart, which can be analyzed according to the K-line. The difference is that the principal of stock trading is 1: 1. Unless the company goes bankrupt, futures are generally 1:20 leverage, Man Cang loses 20%, and foreign exchange and gold are 1: 100. So stocks are at the primary school level, futures are at the middle school level, and foreign exchange is at the university level.