So binden Sie berechnete Attribute an den Wert von input#paramsSetInput in vue

<p id="paramsSetWrap">
    <input id="paramsSetInput" type="hidden" data-key="params" v-model="paramsSetData" :value="paramsValue">
    <p v-for="(param,index) in paramsSetData">
        <input type="text" class="col-sm-2" placeholder="key" v-model="param.key" :value="param.key">
        <input type="text" class="col-sm-2" placeholder="title" v-model="param.title" :value="param.title">
        <input type="text" class="col-sm-3" placeholder="value" v-model="param.value" :value="param.value">
        <select name="" class="col-sm-3" id="" placeholder="type" v-model="param.type" :value="param.type">
            <option value="string">字符串</option>
            <option value="number">数字</option>
            <option value="date">日期</option>
            <option value="time">时间</option>
        </select>
        <input type="button" class="col-sm-2" value="删除" @click="deleteParam(index)">
    </p>
    <input type="button" class="col-sm-11" value="添加参数" @click="addParam">
</p>

 new Vue({
            el: "#paramsSetWrap",
            data: {
                paramsSetData: [{key: "", value: "", title: "", type: "string"}],
            },
            methods: {
                deleteParam: function (index) {
                    this.paramsSetData.splice(index, 1);
                },
                addParam: function () {
                    this.paramsSetData.push({key: "", value: "", title: "", type: "string"});
                }
            },
            computed:{
                paramsValue:function(){
                    return this.paramsSetData;
                }
            }
        });