TradeNo</h4>
<pre>private&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> combineOutTradeNo</pre>
<div class="block">合单商户订单号，必填，商户侧需要保证同一商户下唯一</div>
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<h4>subOrders</h4>
<pre>private&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external