The most popular keyword in the blockchain industry in 2020 is undoubtedly DeFi. It brings the traditional financial planning concept to the blockchain, and at the same time evolves into many different patterns. The rise of DeFi is indispensable to the support of a project, that is, Uniswap. Uniswap is a DEX pioneer which created a brand-new trading mechanism AMM. Most of the DEX that emerged late