The code pages have unique encoding schemes that define a range of values for the graphic and control characters.

编码页面有唯一的编码计划，为图形和控制字符定义了一系列值。

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Flag: (1) the "Masthead" or name of a newspaper. (2) a computer code which indicates that the following characters are a control code and not data.

版头，(2)标记：(1)报纸的版头或名称。(2)电脑的代码；它指出跟着的字符是控制代码而不是数据。

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