随着科学技术的进步和生产力的发展,顾客消费水平和需求欲望也不断提高,从而促使企业之间的竞争日益加剧。而政治、经济、社会环境的巨大变化,使得整个市场需求的不确定性大大增加。进入新世纪以来,企业要面对一个需求不旺且无法预测的买方市场,争夺顾客的竞争愈加激烈。为了提 With the advancement of science and technology and the development of productive forces, the level of consumer spending and desire for demand have also continued to increase, prompting an increasingly fierce competition among enterprises. The huge changes in the political, economic and social environments have greatly increased the uncertainty of the market demand. Since the beginning of the new century, enterprises have to face a buyer’s market with poor demand and unpredictability. The competition for customers is even more fierce. To mention