As our material life increases rapidly,the demand for smart devices such as computers and mobile phones has soared,including a big portion of children,who can spend hours or even a day on their mobile phones.Therefore many parents feel anxious about this phenomenon,although quite a lot of advertisements claim that playing an intellectual game on smartphones is good for cultivating a child's creation and innovation, I am deeply convinced that compared to its positives,there are many disadvantages accompanying in the process,which mainly of the following two aspects: