(This series of courses is especially aimed at students with zero foundation and no coding foundation. The speaker will first teach you how to use some free online databases (GEO, TCGA, Oncomine, GEPIA, UALCAN, OncomiR, etc.) to find differential molecules that you can study. At the same time, in the video, the speaker will teach you how to draw some common graphics in daily news articles, such as: heat map, volcano map, Venn diagram, etc. Then, the speaker will teach you how to do further research on the mined differential molecules, including transcription factor prediction, GO annotation, pathway enrichment analysis, protein interaction network analysis, screening of hub genes in the interaction network diagram, and screening Co-expression analysis and survival prognosis analysis of the hub genes.)