I said goodbye to development work in August. Although I left technology, I still have an inseparable feeling for technology. No, in my spare time, I plan to use asp.net MVC Make a small system (thinking about technology, like an occupational disease), which mainly implements the following functions: 1. Quickly check the purchase price, selling price and supplier of a product. 2. Quickly check the supplier's phone number so you can call to inquire whether the product is in stock. 3. Can be sorted and displayed according to each field of the database