只需要在路径后面加入参数即可：
原始图片url：
https://xxxxx.oss-cn-hangzhou.aliyuncs.com/xxxxx/20210220112206226715043.png
1、图片缩略：原始url + ?image/resize,m_fixed,w_100,h_100
https://xxxxx.oss-cn-hangzhou.aliyuncs.com/xxxxx/20210220112206226715043.png?image/resize,m_fixed,w_100,h_100
2、图片裁剪：原始url + ?image/crop,w_100,h_100,x_100,y_100,r_1
3、图片旋转：原始url + ?image/rotate,90
4、图片锐化：原始url + ?image/sharpen,100