Printers recognize the form - feed character and automatically advance the print head by the required number of lines necessary to begin the next line of data on a new page 打印机会识别换页符并自动根据在新的页开始新行所需的行数移动打印头。
3.
Pages of this type of text are delimited by the ascii form - feed character - value 12 in decimal - denoted by " - f " in c . the advantage of this format over the fixed - number - of - lines - per - page format is that it saves space on disk if there is a lot of variation in the number of lines per page and there are many pages in the file 该类型文本的页由ascii换页字符（十进制数值为12 ，在c中用“ f ”表示）定界。该格式与“每页行数固定”格式相比的好处在于，当每页的行数有很大不同而且文件有很多页时，该格式可以节省磁盘空间。
