Note that, if the mkdir call can't create the requested directory for any reason, it will produce a slightly more precise and informative error message.
要注意的是，如果mkdir调用由于某种原因不能创建请求的目录，它就会生成一个更准确，信息更丰富的错误信息。
Note. The following section is an informative description of the behavior of some current visual user agents when formatting paragraphs. Style sheets allow better control of paragraph formatting.
注释。下面的部分是当前一些可视化用户代理在格式化段落时行为的非正式描述。样式表可以对段落格式化进行更好地控制。
Note: Information is given in Informative Annex a.
注：信息见资料性附录a。
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