最近在学习gdal库，因为学习它的目的是为了读取，处理，保存大数据量的多格式影像，所以我把学习的重点放在了读取数据集，创建数据集，分块读写上。-Recent study gdal library, because its purpose is to learn to read, treatment, save a large amount of data, multi-format video, so I focused on learning to read the data set, create the data set, read and write on block .