采用文献检索，资料研究，专家讨论等方法。
Literature search, material analysis, and export discussion were used.
方法：以市场营销学理论为基础，采用文献检索和对比分析法。
METHODS:This study was conducted based on marketing theory using literature retrieval and contrast analysis method.
本文主要采用文献检索法、问卷调查法、个别访谈法等科学研究方法。
This article adopts scientific research methods such as literature research, questionnaire survey and investigation research and interview.
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