What can I do to learn software development well?

Major in software development, after learning well, you can work as a software engineer and tester in various software enterprises at all levels, engage in software research and development, testing and other related work, work as a project manager and marketing manager in various network information companies, engage in project construction, product sales and other related work, and engage in e-commerce, product operation, product maintenance and other related work in e-commerce companies.