三态获取打印标签字段映射

$url = "http://www.sendfromchina.com/api/label?orderCodeList=".$rev_info['logistics_no']."&printType=".$label_type."&print_type=pdf&printSize=3&printSort=1";
$label_type 取自物流基础设置,模板类型,后台做编码转换
$rev_info['logistics_no'] 对应系统物流单号(【库存】【销售出库】【销售出库单】【国际物流单号】)