1、this.$refs.name.value
2、e.target.value
3、 v-model
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<div id="app">
<input type="text" name="" id="txt" value="" ref="name" v-on:keyup="inputRef"/>
<input type="text" name="" id="txt1" value="" v-on:keyup="inputTargetValue"/>
<input type="text" name="" id="txt2" value="" v-model="name"/>
<h1 id="show">{{name}}</h1>
</div>
</body>
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.6/dist/vue.js"></script>
<script>
new Vue({
el: "#app",
data(){
return {
name: "name"
}
},
methods: {
inputRef: function(){
console.log(this.$refs.name.value)
this.name = this.$refs.name.value
},
inputTargetValue: function(e){
console.log(e.target.value)
this.name = e.target.value
}
}
})
</script>
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