vscode中tab键无法触发emmet快捷生成

1、file——preference——setting

2、点击user setting的extensions

3、点击emmet

4、emmet下的edit in settings.json.添加代码

"emmet.triggerExpansionOnTab": true,
"emmet.includeLanguages": {
        "vue-html":"html",
        "vue":"html"
    }