<request><ownerCode>2575071204</ownerCode><itemId>595972693233</itemId></request>
<response> <flag>success</flag> <combItems> <combItem> <itemId>595732744529</itemId> <count>1</count> </combItem> <combItem> <itemId>596152114119</itemId> <count>1</count> </combItem> </combItems> </response>
<response> <flag>failure</flag> <message>组合货品不存在</message> </response>
