这个是linux系统下libpng的安装包,This is a linux system installation package libpng

用于开发和维护用于读取、创建和操作PNG（便携式网络图形）光栅图像文件的应用程序的参考库(This is to develop and maintain the reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files.)