Ouyi is a world-leading digital asset trading platform, providing users with safe, stable and reliable digital asset trading services, and supports spot and derivative transactions of various mainstream digital assets such as Bitcoin (BTC), Ethereum (ETH). Its strong technical team and risk control system are committed to protecting every transaction of users.

Ethereum is a decentralized open source platform based on blockchain technology, which allows developers to build and deploy smart contracts and decentralized applications. Its native cryptocurrency is Ethereum (ETH), which is one of the leading digital currencies with market value in the world.

As the internationally leading blockchain digital asset trading platform, Binance provides users with a safe and convenient trading experience. Its official app integrates multiple core functions such as market viewing, asset management, currency trading and fiat currency trading.

Binance is the world's leading digital asset trading platform, providing users with secure, stable and convenient cryptocurrency trading services. It supports the transaction of a variety of digital currencies and provides spot, contract and other functions.

Ethereum is a decentralized open source public platform based on blockchain technology. It allows developers to build and deploy smart contracts and decentralized applications. Ethereum (ETH) is a native cryptocurrency of the Ethereum platform. It is not only the "fuel" on the platform, but also one of the leading digital assets with market value in the world. Its price fluctuations have attracted much attention from investors.

Toncoin (TON) is a decentralized first-tier blockchain originally conceived by the Telegram team. It is known for its high performance, low cost and user-friendly features, and aims to provide an open network platform for billions of users around the world. Its native token TON is used in the network to pay transaction fees, pledge and participate in network governance.

Choosing the right HTMLinput type can improve data accuracy, enhance user experience, and improve usability. 1. Select the corresponding input types according to the data type, such as text, email, tel, number and date, which can automatically checksum and adapt to the keyboard; 2. Use HTML5 to add new types such as url, color, range and search, which can provide a more intuitive interaction method; 3. Use placeholder and required attributes to improve the efficiency and accuracy of form filling, but it should be noted that placeholder cannot replace label.

HTTP log middleware in Go can record request methods, paths, client IP and time-consuming. 1. Use http.HandlerFunc to wrap the processor, 2. Record the start time and end time before and after calling next.ServeHTTP, 3. Get the real client IP through r.RemoteAddr and X-Forwarded-For headers, 4. Use log.Printf to output request logs, 5. Apply the middleware to ServeMux to implement global logging. The complete sample code has been verified to run and is suitable for starting a small and medium-sized project. The extension suggestions include capturing status codes, supporting JSON logs and request ID tracking.