The centralized exchange #中心化与去中心化交易所 is currently a solid presence based on testing, but at the same time, decentralized exchanges are a concept that has long been in place, though they still seem to lack sufficient timing. All of these are undoubtedly very important, namely: 1. How does a decentralized exchange ensure its security? 2. How does a decentralized exchange achieve true decentralization? 3. Facilities built with completely independent but unintelligent code that realize functions in the real world. 4. With the advancement of technology, first, decentralized exchanges need to become a reality; this is the first stage. Then, decentralized exchanges need to possess the real capability to handle issues better and allow for large-scale migration of users.