说明：  用logisitic映射生成混沌密码流，对密码流排序后生成置换地址集合，用这个地址集合对图像像素点进行重新排列，从而达到置乱的目的。
(Chaotic maps generated by logisitic password stream flow sorting of passwords generated after the replacement address of the collection, use this address a collection of image pixels to re-arranged so as to achieve the purpose of scrambling.)