vue在组件中使用v-model
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<div >
<my-component v-model="msg"></my-component>
{{msg}}
<my-counter v-model="num"></my-counter>
</div>
<script src="https://unpkg.com/vue"></script>
<script>
Vue.component('my-component', {
template: '<div><input type="text" :value="currentValue" @input="handleInput"/></div>',
data: function () {
return {
// 双向绑定值
currentValue: this.value
}
},
props: ['value'],// 设置value为props属性
methods: {
handleInput(event) {
var value = event.target.value;
this.$emit('input', value);
}
}
})
Vue.component("my-counter", {
template: `<div>
<h1>{{value}}</h1>
<button @click="plus">+</button>
<button @click="minu">-</button>
</div>`,
props: {
value: Number
},
data: function() {
return {
val: this.value
}
},
methods: {
plus() {
this.val = this.val + 1
this.$emit('input', this.val)
},
minu() {
if(this.val>0){
this.val = this.val-1
this.$emit('input', this.val)
}
}
}
});
new Vue ({
el: '#app',
data: {
msg: 'hello',
num: 1
}
})
</script>
</body>
</html>参考官方文档：http://cn.vuejs.org/v2/guide/components.html#使用自定义事件的表单输入组件
参考：http://www.cnblogs.com/bldf/p/6645225.html
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