修改阿里云图片链接 ，自动获得图片大小

将原图：
http://img.321.design/gallery/f9be8202010260903458884.jpg
改为：（按宽500等比例缩放）
http://img.321.design/gallery/f9be8202010260903458884.jpg?x-oss-process=image/resize,w_500
或者：(按最大边500等比例缩放)
http://img.321.design/gallery/f9be8202010260903458884.jpg?x-oss-process=image/resize,l_500

参考：阿里云[https://help.aliyun.com/document_detail/44688.html?spm=a2c4g.11186623.6.733.48d714c2bRdpsb]

(https://help.aliyun.com/document_detail/44688.html?spm=a2c4g.11186623.6.733.48d714c2bRdpsb)

放大参数：?x-oss-process=image/resize,p_320 或者
?x-oss-process=image/resize,w_1600,limit_0
参考：https://help.aliyun.com/document_detail/44688.html?spm=5176.13910061.sslink.1.383a4e1bzg2cTe

腾讯云处理图片后缀为：?imageMogr2/thumbnail/!250p 放大2.5倍。