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<my-button v-model="value"></my-button>
    <my-button :value="value"  :name="name" @input="fname"></my-button>

v-model 实际上就是 @input的简写

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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@include file="/WEB-INF/webpage/common/taglibs.jspf"%>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>${title}</title>
    <meta name="decorator" content="single"/>
    <script src="https://cdn.jsdelivr.net/npm/vue"></script>


</head>
<body>
<div id="app">
    <my-button v-model="value"></my-button>
    <my-button :value="value"  :name="name" @input="fname"></my-button>
</div>

<template id="my_input">
    <div>
        <input :name="name"  @input="updateVal($event)">
    </div>
</template>

<script>
    Vue.component("myButton",{
        template:"#my_input",
        props:["name"],
        methods:{
            updateVal:function(e){
                console.info("input name:"+this.name)
                this.$emit("input",e.target.value);
            }
        }

    })
    var app=new Vue({
        el:"#app",
        data:{
            "value":"gz",
            "name":"namehere",

        },
        methods:{
            fname:function(val){
                console.info("val_"+ val)
                this.value=val;
            },

            processClose:function($event,obj){
                console.info(obj)
                console.info($event)
                console.info("close process invoked")
            }
        }
    })
</script>
</body>

</html>