After the el-radio-group component in the elementUI framework is assigned a value, the click is invalid.

Add this.$forceUpdate() to the event triggered by the binding value change to force update

<el-radio-group v-model="radio" @change="handleChange">
    <el-radio :label="3">备选项</el-radio>
    <el-radio :label="6">备选项</el-radio>
</el-radio-group>

handleChange() {
    
    
    this.$forceUpdate()
}