途径一：在vscode中依次打开：【文件】-->【首选项】-->【配置用户代码片段】-->【新代码片段】

途径二：或者点击左下角的设置模样的按钮也可找到（如下图）

 然后点击vue.json

 如果没设置过的话就像下图一样；配置过的应该也知道后面的步骤了

贴入下面代码

{
	// Place your snippets for vue here. Each snippet is defined under a snippet name and has a prefix, body and 
	// description. The prefix is what is used to trigger the snippet and the body will be expanded and inserted. Possible variables are:
	// $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. Placeholders with the 
	// same ids are connected.
	// Example:
	// "Print to console": {
	// 	"prefix": "log", //log为快捷名称
	// 	"body": [
	// 		"console.log('$1');",//body中就是输入快捷名称并且选择时快捷生成的代码模板
	// 		"$2"
	// 	],
	// 	"description": "Log output to console"
	// }
	"Print to console": {
		"prefix": "vue3",
		"body": [
		  "<template>",
		  "  <div></div>",
		  "</template>",
		  "",
		  "<script setup>",
		  "import { ref, reactive, getCurrentInstance } from 'vue';",
		  "const { proxy } = getCurrentInstance()",

		  "</script>",
		  "",
		  "<style scoped lang='scss'>",


		  "</style>"
		],
		"description": "Log output to console"
	  }

}

快捷键：ctrl+s；保存好文件就可以用了

当我们选择vue3时就可快速生成代码模板body中的代码了，如下图

就此完成；

只为记录学习中的问题