摘要：
extract a page from a multiple pages pdf 1 extract a page from a multiple pages pdf use pdftk package type the following commands $ pdftk full-pages.p 阅读全文
摘要：
** read text file in pythoncapability: reading =text= from a text file 1. open the IDLE text editor >>> idle32. declare a *string* variable that holds 阅读全文