libpng官方源码 版本为version 1.2.37-libpng is the official PNG reference library. It supports almost all PNG features, is extensible, and has been extensively tested for over 14 years

本人从网上收集的关于PNG格式的资料，包括PNG的技术文档和PNG文件结构的分析-I gathered from the Internet on the PNG format, including PNG' s technical documentation, and PNG file structure analysis of