店主可以上传他们的设计，数量不限。
Shopkeepers can upload as many or as few designs as they can create.
链接数量不限，但是在给定场景中通常至少有一个链接。
You can have an unlimited number of links, but there will always be at least one link in a given scene.
清单25所示的输入消息包含数量不限的Player元素。
Listing 25 shows an example input message that contains an unbounded number of occurrences of the Player element. Each Player has an associated Name and team.
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