RID指定一个记录所在的页号和页中位置。
They specify the page number and the slot on the page that a record is located in.
要使用这些方法，用户必须提供页号和所需的元素号。
To use these methods, the user has to pass the page number and the number of elements desired.
这意味着标题之间的空格和目录引用的页号会用重复的点填充。
This means that the Spaces between the bookmark title and the referenced page number on the table of contents are repetitiously filled with the dot character.
每个页面底部有标签，表明当前页号，例如“第12页，共15页”。
Each page is labeled at the bottom, showing the current page number, such as "page 12 of 15".
默认的头部（header）包含文件名和文件创建日期和时间，以及一个页号和两行空白页脚。
The default header includes the filename and file creation date and time, along with a page number and two lines of blank footer.
RID通常描述为（页号；slot数），即十进制记数的（0；10）、二进制记数的（0；A）。
RIDs are often depicted as (page number; slot number), or (0;10) in decimal notation, (0;A) in hexadecimal notation.
打印出来的布局由教程中的图形和文本组成，再加上页号、页眉、页脚一起创建高质量的打印输出。
Our printed layout consists of the graphics and text from the tutorial, combined with page Numbers, headers, and footers to create high-quality printed output.
selpg通过以下方法记住当前页号：如果输入是每页行数固定的，则selpg统计新行数，直到达到页长度后增加页计数器。
Selpg keeps track of the current page number as follows: If input is fixed-lines-per-page, it counts newlines until the page length is reached and increments a page counter.
selpg通过以下方法记住当前页号：如果输入是每页行数固定的，则selpg统计新行数，直到达到页长度后增加页计数器。
Selpg keeps track of the current page number as follows: If input is fixed-lines-per-page, it counts newlines until the page length is reached and increments a page counter.
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