随着时间的推移，消费者对乳品的认知度提高，消费者的消费心理和消费行为有所变化。

With the time lapse, consumer improve the recognition to the dairy products, customer mentality and consumer behavior has changed.

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而消费者的需求数量和结构的变化受到多方面因素如人口、经济、社会文化、购买心理和购买行为等的影响。

And changes in consumer demand and the number of structures affected by many factors such as population, economic, social, cultural, psychological, and purchasing behavior of purchase.

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这种变化从企业的视角看是互联网上的营销市场要素发生了改变，而具体到消费者层面则源于消费心理的变化和消费行为的改变。

From the perspective of enterprises, the Internet sales markets are changing greatly, which result in changes in consuming psychology and consuming behaviors from the view of consumers.

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