如果您正在接收标准HTML，您可能不需要为段落标记做这些，因为它们不是对称的。
If you're accepting standard HTML, you should probably not require this for paragraph markers , because they're often not balanced.
您刚刚探索了rss格式的标准，以及如何创建提要、接收提要并将其转换为可用的HTML。
You just explored the standard of the RSS format and how to create a feed as well as receive one and transform it into useable HTML.
很多命令是从一个叫做标准输入的设备中接收输入信息的。
Many commands can accept input from a facility called standard input.
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