<script type="text/javascript">
msg = confirm("是否学过h5");
console.log(msg);
name =prompt("请输入信息");
document.write("name");
</script>
1.confirm弹出确定和取消按钮
2.prompt弹出输入框
原文：https://www.cnblogs.com/MySweetheart/p/12286768.html