需求：存在多个分类，每个分类里有多个选项，选项之间单选

 <el-card class="box-card">
      <div class="filter-tree">
        <div v-for="(item,index) in listData" :key="index" class="templateBox">
          <el-card class="temCard box-card" style="box-shadow:none">
            <div slot="header" class="header clearfix">
              <i class="el-icon-caret-right" />
              <span>{{ item[0].mainTagName }}</span>
            </div>
            <div>
              <el-row :gutter="20">
                <el-radio-group v-model="radioChooseArr[index]" class="radioGroup" @change="radioChange">
                  <el-col v-for="(item2,index2) in item" :key="index2" :span="8">
                    <div class="item">
                      <img style="height:80px;border:1px solid #ccc" :src="item2.data[0].tagPath" alt="">
                      <el-radio style="height:60px;line-height:60px;width:100%;" :label="item2.data[0].id">{{ item2.data[0].tagName }}</el-radio>
                    </div>
                  </el-col>
                </el-radio-group>
              </el-row>
            </div>
          </el-card>
        </div>
      </div>
    </el-card>

<script>
export default {
  data() {
    return {
      radioChooseArr: [],
      listData: [],
      list: []
    }
  },
  created() {
    this.getList()
  },
  methods: {
    async getList() {
      getTemplate().then(response => {
        var arr = []
        var data = response.data
        for (var key in data) {
          arr.push(data[key])
        }
        this.listData = arr
        for (let i = 0; i < this.listData.length; i++) {
          var ele01 = arr[i]
          for (let j = 0; j < ele01.length; j++) {
            var ele02 = ele01[j]
            this.list.push.apply(this.list, ele02.data)
            if (ele02.data[0].printIsDefault === 1) {
              this.radioChooseArr.push(ele02.data[0].id)
            }
          }
        }
        setTimeout(() => {
          this.listLoading = false
        }, 1.5e3)
      })
    },
    radioChange(e) {
      console.log(e)
    }
  }
}
</script>

<style>
</style>

// 返回的数据格式如下

"data":{
"rfid":[{
"mainTagName":"RFID标签",
"mainTagKey":"rfid",
"data":[{"id":"10000","mainTagName":"RFID标签","mainTagKey":"rfid","tagName":"RFID标签
(80*40)","tagPath":"http://192.168.1.202:9000/filesUpload/rfidTag/RFID_580_300.png","tagTemplate/Path":"/nginx/html/filesUpload/report/template/RFID_580_300.jasper","tagSize":"80*40","printIsDefa/ult":0,"tagSr":"70","tagSc":"70"}]
}],
"putong":[{"mainTagName":"普通标签","mainTagKey":"putong",
"data":[{"id":"10002","mainTagName":"普通标签","mainTagKey":"putong","tagName":"普通(75*20)","tagPath":"http://192.168.1.202:9000/filesUpload/rfidTag/RFID_576_140.png","tagTemplatePath":"/nginx/html/filesUpload/report/template/RFID_576_140.jasper","tagSize":"75*20","printIsDefault":1,"tagSr":"5","tagSc":"40"}]
}]
}