针对上一版本增加图片六个级别的量化处理功能。至此实现了图片的读取，显示，打开，状态栏，双显，灰度，六个等级的量化显示。仅支持24位BMP图像。-Increase for the previous version of the picture six-level quantization processing functions. Thus to achieve the picture read, display, open, status bar, dual display, gray, six