It is recommended to use the APP application to meet the three characteristics of ease of use, understandability and convenience, such as menu and language chat. I believe that if you can teach it several times, your parents can lock the drawer with a flashlight and light it up, so that you can check the fresh air and air pollution index at will. Seasoning index bean menu can directly enter the name of the dish or ingredients, search for detailed recipes, and the text description is clear. The step diagram demonstrates that family drugs are specially designed for many families, and drug information service tools can not only identify them. The authenticity of drugs and health foods can provide information about nearby pharmacies and even give pregnant women a safety warning. It is suitable for home use. Wechat and speakers can send some information to the people they want to talk to according to a certain key and recording on the surface. This is like saying that the book listening software with the same interface contains a large number of audio-visual books, biographies and operas, which can be listened offline through mobile phones. The software provides audio-visual readers with the sound quality of reading aloud.