您可以使用图形来取代文字open和closed。

You can use graphics instead of the words open and closed.

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互联网的快速普及使多媒体取代文字成为人们最主要的信息交流载体。

With the widespread of the Internet, Multimedia has replaced text message to become the most popular information carrier in communication.

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您可以使用规则运算式来搜寻字串中的模式、取代文字，以及撷取子字串。

You can use regular expressions to search for patterns in a string, replace text, and extract substrings.

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