E-commerance in different age In the information age, the reform of e-commerce digitization will affect everyone in our society and changing the people's working style and consumption habits. Traditional trading methods have been replaced by new online exchanges. E-commerce at different times has different characteristics. It has gone through several changes, and the latest is coming. The first phase is the PC era, a number of Internet companies have risen up. People can use computers to browse thousands of commodity information on the Internet. Add the item to the shopping cart with a click of the mouse and pay the fee. Then, goods can be delivered to your door by the express delivery. At this stage, electronic commerce realizes paperless transaction, and any transaction becomes electronic. Sellers' goods and buyers are connected via Internet platforms. The second phase is the Mobile Internet Age. Not every home can use the computer for shopping, so the popularity of e-commerce is not high in Pc era. With the popularity of mobile phones and lower communication costs, more and more people are able to carry shopping through mobile Internet. For instance, many college students use their mobile phones to buy clothes and other goods through platforms such as Taobao and Jingdong. Nowadays, plenty of items on the Internet can meet the needs of most people, but they cannot be customized. In the new phase, E-commerce can achieve personalized customization. Especially with the development of artificial intelligence, merchants can predict the needs of customers through big data and recommend them through advertising and other means. For instance, If you talk to a friend about a product on WeChat, you may find that the next day you will see a corresponding AD message on the page of your friend's circle. Of course, many companies also offer many customized services. For example, You can enter information such as your height, weight, and hobbies on the website, and then the retailer will customize clothes for you.