简易的效果
代码：
<style>
div{
width: 200px;
height: 80px;
background-color: #90EE90;
margin: 10px 0 10px 0;
}
</style>
</head>
<body>
<textarea></textarea><br>
<button>发布</button><br>
<script>
$(function () {
$('button').on('click',function () {
let t = new Date();
let h = t.getHours();
let m = t.getMinutes();
let s = t.getSeconds();
let T = h+"时"+m+"分"+s+"秒"+"来自xxx";
let val = $('textarea').val();
let template = `<div>
<span class="time">${T}</span><br>
<span class="text">${val}</span>
</div>`;
$('body').append(template);
})
})
</script>
</body>
