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什么是网格媒体功能的网格输出设备和位图输出设备？

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From the "Internet Encyclopedia":

"Grid media consists of a grid or array of discrete characters. Examples include traditional computer terminals and character printers"

Grid and Bitmap also appear to be supersets of other media types and are counter to each other:

http://www.w3.org/TR/2009/CR-CSS2-20090908/media.html#media-groups

So a "grid" media query would match any of the following:

  1. terminal
  2. braille device
  3. handheld with limited display (perhaps older solution for the visually impaired)
于 2014-07-23T04:37:56.153 回答