public function updateVendorMemberInfo($member)
 {
     $data = array("member_name" => $member['member_name'], "member_position" => $member['member_position'], "member_profile" => $member['member_profile']);
     //判断图像是否需要修改
     if ($member['member_img_loc'] != null) {
         $data['member_img_loc'] = $member['member_img_loc'];
     }
     $where = array("member_id =" => $member['member_id']);
     $dao = new DaoVendorMember();
     return $dao->update($data, $where);
 }