What is svg
svg is a graphical format, vector, graphic description of XML-based open page
http://s3plus.meituan.net/v1/mss_0a06a471f9514fc79c981b5466f56b91/svgtextcss/827cd834323c4830364b865636293e43.svg
After opening a picture
to view the source code you will find is a xml file