CodePudding user response:
These two days have been looking for search relevant information data by ISBN, combing the train of thought, a purely amateur, teach fish to swim:1. Mainly through the API interface data query, the interface almost no free now use
2. Can use existing online book sales sites related information, need to write their own
3. Pay to use the data interface, the most simple
4. The application of mature is WeChat, sweep code can access to information, QQ sweep ISBN13 digit code