GDAL使用只读方式打开图像输出图像的格式信息输出图像的大小和波段个数读取一行数据-GDAL uses a read- only way to open the image output image format information output image size and the number of the band to read a line of data

GDAL学习代码,是学习GDAL的入门资料，对GDAL的学习会有所帮助(GDAL learning code, is to learn GDAL introductory information, GDAL learning will be helpful)