How vscode creates code templates

选择菜单里的 文件 > 首选项 > 用户代码片段

选择你需要自定义模板的文件，以vue为例

配置对应文件json

把代码片段写在json里。每个代码段都是在一个代码片段名称下定义的，并且有prefix、body和description。prefix是用来触发代码片段的。使用 $1，$2 等指定光标位置，这些数字指定了光标跳转的顺序，$0表示最终光标位置。

{
  "vue-template": {
    "prefix": "vue",
    "body": [
      "<template>",
      "  <div class=\"$1\">",
      "",
      "  </div>",
      "</template>",
      "",
      "<script>",
      "export default {",
      "  name: &#39;$1&#39;,",
      "  data() { ",
      "    return {",
      "",
      "    }",
      "  }",
      " }",
      "</script>",
      "",
      "<style lang=\"\" scoped>",
      "  .$1{",
      "",
      "  }",
      "</style>"

    ],
    "description": "my vue template"
  }
}

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