为什么运行不了？求大神帮我找下bug我实在找不出来了
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src ="vue.js"></script>
</head>
<body>
<div id="root">
<div>
<input v-model="inputValue"/>
<button @click="handleSubmit">提交</button>
</div>
<ul>
<li v-for="(item,index) of list" :key="index">{{item}}</li>
</ul>
</div>
<script>
new Vue({
el:"#root",
data:{
inputValue:'',
list:{}
},
methods:{
handleSubmit:function(){
this.list.push(this.inputValue)
this.inputValue=""
}
}
})
</script>
</body>
</html>
