libpnghttps://github.com/glennrp/libpngzlibhttps://github.com/madler/zlib/releaseshttps://github.com/madler/zlib/releases/tag/v1.2.8打开,libpng\projects\vstudiozlib-1.2.8 需要放在和libpng源码的同一级目录、(详见 libpng\projects\vstudio\zlib.props)