1、新增客户 2、客户管理 3、分组管理 二、辅助功能 1、导入客户 2、导出客户 3、排除重复 4、垃圾箱 清空 -1, a new customer 2, customer management 3, sub-management of the second, auxiliary function 1, 2 into customers, export customers 3, rule out the possibility to repeat 4, em