1、预付款购物功能 会员可以有预付款，并可以通过预付款进行购物； 2、会员积分与会员价功能 不同会员将拥有不同积分，属于不同的会员级别，从而享有相对应的会员价格；-1, the advance payment shopping function members can have advance payment, and can advance through the purchase 2, member points and membership price function differen