Primary operation (typing, simple typesetting; Enter the form, simply format and print; Make a few pages of PPT with a template and just fill in some words.) I learned it quickly. It takes three hours. Of course, practice more afterwards, or you will soon forget it.
Advanced operations (mixed arrangement of pictures and texts, tables, making directories and indexes; Function formula use, screening, data processing, charts; It is difficult to mix pictures and texts, add audio and video, narration and set button events. If you have a computer foundation, you can find tutorials online. If there is no foundation, it is recommended to find someone to guide. Under someone's guidance, you can study in three days. After that, you still need to practice more.