In the XML parser step, the item address is a group, but in the XML composer step, the item address is a list.

在XML分析器步骤中，项目地址是一个组，但在XML编写器步骤中，项目地址是一个列表。

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Since the incoming XML data just contains a flat list of elements, you'll group them by address in the stylesheet.

因为输入的XML数据包含统一的元素列表，所以在样式表中可以根据地址对这些元素进行分类。

youdao

In order to be able to map the schema structure in the parser to the composer, the Group to List projection has to be applied to the item address in the Output TAB of the XML parser step.

为了能够将分析器中的架构结构映射到编写器中，必须将Group To List映射应用到XML分析器步骤的Out put选项卡中的项目地址。

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