Tik Tok。 Guo Huanan is the anchor of Tik Tok and has a cooperative relationship with Tik Tok. Therefore, Guo Huanan's online math class can be watched on the platform of Tik Tok Tik Tok, which is a short video social software of music creativity hatched by ByteDance. The software was launched in September, 2065438+2006, and it is a short video community platform suitable for all ages.