If the number of Confucius' old book network is gone, you can find it first and then log in. Enter the login page of the webpage first, and then there is a change number and a forgotten number under the filled number. You can click the Forgotten Number and reapply. Kongwang, founded in 2002, is a large-scale trading platform for second-hand goods, antique books and commodities, a C2C platform built by traditional cultural industries combined with the Internet, and a second-hand market with traditional cultural values.