class Contact():
    def add_menber(self, data):
        return self

    # 正常case，返回self


    def add_menber_errot(self,data):
        return list
    # 异常case,返回其他页面，如list


    def search(self, name):
        pass

    def inport_users(self, data):
        pass

    def export_users(self):
        pass

    def set_department(self, data):
        pass

    def delete(self):
        pass

    def invite(self):
        pass

    def add_department(self):
        pass
