一 ， JSON.parse   

 this.num_normsTwo= JSON.parse(res.result.normsTwo)

二. 搜索框 

<template>
  <div class="app-container">
    <span style="margin-left:120px;margin-right: 20px;width: 100px; display: inline-block;">物资名：</span>
    <el-autocomplete
      v-model="suppliesName"
      :fetch-suggestions="querySearchName"
      placeholder="请输入内容"
      :trigger-on-focus="false"
    ></el-autocomplete>
    <br>
    <el-button type="primary" round style="margin-left:280px" @click.native.prevent="commit">添加</el-button>
    <el-button type="primary" round style="margin-left:100px" @click.native.prevent="cancel">取消</el-button>
  </div>
</template>

<script>
    export default {
      
        data() {
            return {
                suppliesName: '',  //默认是空值 
                dataList: [
                    {"id":1,"categoryTypeId":3,"name":"气象雷达","unit":"套","model":"","type":"EQUIPMENT","validPeriod":6,"createTime":"2021-07-04T15:41:19.000+0000","createUserName":"admin","updateTime":"2021-07-11T05:21:47.000+0000","isDeleted":false,"value":"气象雷达"},
                    {"id":2,"categoryTypeId":3,"name":"自动气象站","unit":null,"model":"","type":"EQUIPMENT","validPeriod":0,"createTime":"2021-07-04T16:00:47.000+0000","createUserName":"admin","updateTime":"2021-07-11T05:12:22.000+0000","isDeleted":false,"value":"自动气象站"},
                    {"id":6,"categoryTypeId":3,"name":"气象探空仪器","unit":"套","model":"","type":"SUPPLIER","validPeriod":0,"createTime":"2021-07-08T06:23:16.000+0000","createUserName":null,"updateTime":"2021-07-11T05:12:25.000+0000","isDeleted":false,"value":"气象探空仪器"},
                    {"id":9,"categoryTypeId":3,"name":"气象移动观测设备","unit":"套","model":"","type":"EQUIPMENT","validPeriod":12,"createTime":"2021-07-08T06:23:16.000+0000","createUserName":null,"updateTime":"2021-07-15T14:46:00.000+0000","isDeleted":false,"value":"气象移动观测设备"},
                    {"id":8,"categoryTypeId":4,"name":"卫星定位测量仪","unit":"套","model":"","type":"EQUIPMENT","validPeriod":24,"createTime":"2021-07-10T17:39:30.000+0000","createUserName":null,"updateTime":"2021-07-10T18:06:45.000+0000","isDeleted":false,"value":"卫星定位测量仪"}
                    ]
            }
        },
        methods: {
            // 定义方法
            querySearchName(queryString, cb){
                //存放此次查询结果
                let tmpList = []  //定义空数组
                this.dataList.forEach((item, index) => {  //循环 dataList  数据
                    // console.log("item.name", item.name)

                    if(item.name.indexOf(queryString) > -1){   // 截取你输入的文字 然后进行匹配 符合添加到tmpList 数组 展示
                        tmpList.push(item)
                    }
                    console.log("查询返回结果：", item.name.indexOf(queryString) )
                })
            
                // 调用 callback 返回建议列表的数据
                cb(tmpList);  
              
            },


            // 按钮
            commit() {
                //禁用按钮点击事件
                console.log("点击了提交按钮：", this.supplierName)
            },
            cancel() {
                this.$router.go(-1)
            },
            handleSelect(item) {
                console.log("选中了这条记录：", item);
                //todo 后续的操作，赋值、查询等
            },
        }
    }
</script>