:::demo 示例

```html
<template>
    <div>
        <h1>1.基本用法</h1>
        <button @click='clickHandler'>打开弹窗</button>
    </div>
</template>

<script>
    export default{
        name: "basic",
        methods: {
            clickHandler(){
                this.$modal({
                    title:'弹窗的基本用法',
                    content:'<h1>我是一级标题</h1><h2>我是二级标题</h2><h3>我是三级标题</h3>',
                    onShow:()=>{

                        console.log('basic');

                    }
                });
            }
        }
    }
</script>
```
:::