How to watch the barrage in Baidu cloud video?

After Baidu cloud video is full screen, there is a barrage button in the lower right corner, just open it.

Baidu (English name: Baidu, Inc Baidu Collection _ Co., Ltd.) is an Internet company mainly engaged in search engine services. It was founded by Li Yanhong and Xu Yong in Zhongguancun, Beijing on June 30th, 2000. "Baidu" originated from a sentence by Xin Qiji, a poet in the Southern Song Dynasty, which described the poet's persistent pursuit of ideals. The company's business scope covers search, artificial intelligence, cloud computing, big data and other aspects, and it is one of the top three Internet companies in China.