可以添加或删除值，也可以重新排列已添加的任何值。

You can add or remove values, and you can reorder any values that have been added.

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内部 foreach 循环迭代哈希条目，删除值最后的后缀空格字符。

The inner foreach loop iterates over the hash entries and strips trailing space characters from the values.

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除了创建SOAP头部外，这个原语可以在传入的消息中查找头部并相应地修改或删除值。

In addition to creating SOAP headers, this primitive can find headers within the incoming message and modify the value or delete them accordingly.

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