Which of the following stages has the Internet changed traditional industries?

The Internet is actually a change in people's lifestyle and habits. In the process of the integration and collision of the Internet, traditional industries made changes spontaneously or forcibly, mainly in the following stages: 1. During the forced period, they tried to access the Internet and use it to serve the product sales of enterprises; 2. During the in-depth period, they tried to serve customer service channels based on the Internet and traditional industries, and created an Internet form with their own characteristics with the help of the Internet; 3. Integration and cross-border integration of traditional industries and the Internet, forming an Internet business circle based on itself, accumulating users and resources. The Internet economy is the user economy, and mastering users means mastering the market, and integrating into its own products and other products on this basis;