(1) Resource sharing platform: Dou news, sharing daily campus news and the latest hot spots; Dou music, share everyone's favorite music; You can check the results of CET-4 and CET-6, computer level 2, teacher qualification certificate, etc. Dou inquiry can display all the published information (2) friends world section, can find like-minded friends (3) lost and found section, can help students find things, find the owner (4) idle things trading section, can publish the need to trade items dedicated to trade (5) learning mutual aid section, share learning, help each other