背景随机更改颜色的JS代码

HTML代码

<p>单击下面的按钮以更改文档的背景颜色：</p>

<button>点我改变背景颜色</button>

JS代码
<button>Click me</button>

<script>
function bgChange() {
   let color = "rgb(" + random(255) + "," + random(255) + "," + random(255) + ")";
   document.body.style.backgroundColor = color;
}
</script>