Based on mobile technology and course recording and broadcasting technology, typical cases in daily life are used as introduction courses, experimental exploration is arranged, and finally knowledge points are summarized.<br>Related software such as PPT, recording screen can be used as introduction course. PPT can be used to write the important guiding content in the experimental exploration, which is more clear and intuitive, and can also summarize the knowledge points on the PPT and directly hit the key points.<br>
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