简述了虚拟打印机的设计方案，实施方法-outlines the virtual printer's design, implementation procedures, etc.

本人翻译的RFC5347，方便大家在进行FOIP设计时使用。网上没有中文的，独家所有，本人原创。-I translated RFC5347, designed to facilitate people making use of FOIP. Online there is no Chinese, exclusive of all, I am original.