PCD数据是Point Cloud Library（PCL）开发库的数据类型，大家如果使用点云开发的话，需要用到这些数据作为示例。-PCD (Point Cloud Data) file format is used inside Point Cloud Library (PCL). The PCD file format is not meant to reinvent the wheel, but rather to complement existing file formats

图书管理系统概要设计说明书（软建工程系统概要设计文档）-Library management system outline design specification (soft construction in progress outline design document)

P y t h o n , library参考手册, 中英文对照翻译-P y t h o n , library

g l i b库是L i n u x平台下最常用的C语言函数库，该文档主要介绍glib基础知识-The glib library is the most commonly used C language function library on linux platform, the document describes the basics glib