el的2种写法

1.el: '#root',

javascript"><div id="root"> </div><script type="text/javascript">const x= new Vue({el: '#root',data: {name: '伏尔加'}})</script>

2. x.$mount('#root')

javascript"><div id="root"> </div><script type="text/javascript">const x= new Vue({data: {name: '伏尔加'}});x.$mount('#root');</script>

data的2种写法

javascript"><div id="root"> </div><script type="text/javascript">const x= new Vue({el: '#root',data: {name: '伏尔加'}});</script>

javascript"><div id="root"> </div><script type="text/javascript">const x= new Vue({el: '#root',data() {return {name: '伏尔加',}}});</script>