After the device file is successfully opened by calling open , this parameter could be acquired.
通过调用open成功打开设备文件之后，将需要获取这个参数。
They had read it by camp-fire light and took some grim pleasure in calling it "lee's miserables." She opened it at the middle and began to read in a clear monotonous voice.
他们就着篝火的亮光读这本书，还严肃而风趣地称之为“悲惨的李将军”，她从中间翻开了一页，就用清晰而单调的声音念起来。
They had read it by camp-fire light and took some grim pleasure in calling it "lee's miserables." She opened it at the middle and began to read in a clear monotonous voice.
他们就着篝火的亮光读这本书，还严肃而风趣地称之为“悲惨的李将军”，她从中间翻开了一页，就用清晰而单调的声音念起来。
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