Vue实现勾选后向数组都添加

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>多选</title>
    <script src="js/vue.js"></script>
</head>
<body>
<div class="main">
    <input type="checkbox" id="jack" value="Jack" v-model="checkedNames">
    <label for="jack">Jack</label>
    <input type="checkbox" id="john" value="John" v-model="checkedNames">
    <label for="john">John</label>
    <input type="checkbox" id="mike" value="Mike" v-model="checkedNames">
    <label for="mike">Mike</label>
    <br>
    <span>Checked names: {{ checkedNames }}</span>
</div>
<script>
    var example1 = new Vue({
        el:".main",
        data: {
            checkedNames: []
        }
    })
</script>
</body>
</html>

实现效果
Vue实现勾选后向数组都添加