JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.bootcss.com/vue/2.5.13/vue.min.js"></script>
<div id="app">
    <select-db unit="万">
        <select-db-one slot-scope="props">{{props.unit}}</select-db-one>
    </select-db>
</div>

JavaScript

Vue.component('select-db', {
	props: ['unit'],
	template: '<ul><slot :unit="unit"></slot></ul>',
});

Vue.component('select-db-one', {
	template: '<li><slot></slot></li>',
});

var vm = new Vue({
	el: "#app",
    data: {
    	message: 233
    }
});