The data acquisition system mainly has the following acquisition methods: 1. Manual access: users manually access web pages and copy and paste the required data into the system. 2. Automatic collection: Using web crawler technology, write a program to simulate the behavior of human accessing the web page in the browser, and automatically grab the data on the web page. 3.API interface collection: the required data is obtained by calling the API interface provided by the website. 4. Database acquisition: directly connect to the database and extract the required data. 5.RSS subscription set: By subscribing to the RSS feed of the website, updated data can be obtained. 6. File Import and Collection: Import the existing data files into the system for collection. Octopus collector is an Internet data collector with comprehensive functions, simple operation and wide application. If you need to collect data, Octopus Collector can provide you with intelligent identification and flexible custom collection rule settings to help you get the required data quickly. Learn more about the functions and cooperation cases of Squidward Tentacles Collector, please go to official website for details.