el-radio group 选中

选中的格式

  选中的 obj  = { aaa:'1', bbb: '2'}

     <el-card class="box-card" v-for="(item, key) in showData" :key="key">
            <div slot="header" class="headfix">
                <span class="score-title">{{ item.metricGroup }}</span>
                <div class="score-box">
                       <span>{{  postData[item.tag] }}</span>
                       <span>(Medium)</span>
                </div>
            </div>
            <div class="ra-box">
                <div v-for="(item1, index) in item.taskVulnVentorMetricList" :key="index" class="ra-item">
                    <span class="title">{{ item1.metricName + ' (' + item1.metric +')' }}</span>
                    <el-radio-group v-model="radioObj[item1.metricName]" size="small" fill="#ccc" @change="(e) => setRadioArray(e, item1.metricName, item1.taskVulnVentorValueList)">
                        <el-radio v-for="item2 in item1.taskVulnVentorValueList" :key="item2.id" :label="item2.metricValue" border  size="small"> {{ item2.metricValueName + ' (' + item2.metricValue  +')' }}</el-radio>
                    </el-radio-group>
                </div>
            </div>
        </el-card>