vue零基础开发015——ref引用
2019-11-22 本文已影响0人
文朝明
【ref模型】
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>组件中ref引用</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="root">
<div ref="hello" @click="handleClick">ref引用</div>
</div>
<script>
var vm = new Vue({
el: "#root",
methods: {
handleClick: function () {
//vue中所有引用中叫做hello的引用
console.log(this.$refs.hello.innerHTML)
}
}
})
</script>
</body>
</html>
引用ref
【dom操作】
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>组件中ref引用</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="root">
<counter></counter>
<counter></counter>
</div>
<script>
Vue.component('counter', {
template: '<div @click="handleClick">{{number}}</div>',
data: function () {
return {
number:0
}
},
methods: {
handleClick: function () {
this.number++
}
}
})
var vm = new Vue({
el:'#root'
})
</script>
</body>
</html>
初始化
点击数字+1
【ref引用计算】
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>组件中ref引用</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="root">
<counter ref="one" @change="handleChange"></counter>
<counter ref="two" @change="handleChange"></counter>
<div>{{total}}</div>
</div>
<script>
Vue.component('counter', {
template: '<div @click="handleClick">{{number}}</div>',
data: function () {
return {
number:0
}
},
methods: {
handleClick: function () {
this.number++
this.$emit('change')
}
}
})
var vm = new Vue({
el: '#root',
data: {
total:0
},
methods: {
handleChange: function () {
// console.log("change")
// console.log(this.$refs.one.number)
this.total=this.$refs.one.number+ this.$refs.two.number
}
}
})
</script>
</body>
</html>
计算
