Provides storage for text and services to manipulate it but does not support format attributes and cannot be displayed.
为文本提供存储，使服务可对其进行操作，但不支持格式属性也不能被显示。
Once you've identified the printer and specified the output format, attributes, and content, the only thing left to do is print.
一旦您识别了打印机，并指定了输出格式、属性和内容，那么只要打印一下就行了。
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