一键生成html、vue、jsx、ajax、sass、docker等代码片段
https://blog.csdn.net/weixin_33860528/article/details/88932188?depth_1-utm_source=distribute.pc_relevant.none-task&utm_source=distribute.pc_relevant.none-task

自定义代码片段
https://blog.csdn.net/shenxianhui1995/article/details/81231106

官方文档
https://code.visualstudio.com/docs/editor/userdefinedsnippets