The example in this article describes the implementation method of JS pop-up dialog box. Share it with everyone for your reference, the details are as follows:
1. Warning box
<html>
<head>
<script type="text/javascript">
function disp_alert()
{
alert("我是警告框！！")
}
</script>
</head>
<body>
<input type="button" onclick="disp_alert()" value="显示警告框" />
</body>
</html>
2. Confirm the cancel box
<html>
<head>
<script type="text/javascript">
function disp_confirm()
{
var r=confirm("按下按钮")
if (r==true)
{
document.write("您按了确认！")
}
else
{
document.write("您按了取消！")
}
}
</script>
</head>
<body>
<input type="button" onclick="disp_confirm()" value="显示确认框" />
</body>
</html>
3. There is an input box
<html>
<head>
<script type="text/javascript">
function disp_prompt()
{
var name=prompt("请输入您的名字","Bill Gates")
if (name!=null && name!="")
{
document.write("你好！" + name + " 今天过得怎么样？")
}
}
</script>
</head>
<body>
<input type="button" onclick="disp_prompt()" value="显示提示框" />
</body>
</html>
I hope this article will be helpful to everyone in JavaScript programming.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
