<body>
<div id="app">
<!-- v-model结合input:radio单选框使用 不写name属性 也可以实现单选 -->
<label for="male">
男:<input type="radio" id="male" value="男" v-model="sex">
</label>
<label for="female">
女:<input type="radio" id="female" value="女" v-model="sex">
</label>
</div>
<script src='https://cdn.jsdelivr.net/npm/vue@2.6.12/dist/vue.js'></script>
<script>
const app = new Vue({
el: '#app',
data: {
sex: '男'
}
})
</script>
</body>