elementUI中el-radio-group的使用

<template>
 <el-radio-group v-model="radio" size="small" @change="changeTheme" fill="#66b1ff">
    <el-radio-button :label="1">主題一</el-radio-button>
    <el-radio-button :label="2">主題二</el-radio-button>
 </el-radio-group>
</template>
<script>
  export default {
    name: "ReportContent",
    props: {},
    data() {
      return {
       
        //主題切換
        radio: 1,
        
      };
    },
    computed: {},
    created() {
    },
    mounted() {
    },
    watch: {},
    methods: {
      //切換主題
      changeTheme(val) {
       console.log(val)
      },
    },
    destroyed() {
    }
  };
</script>