这篇文章主要介绍“原生js提示框并自动关闭怎么实现”的相关知识，小编通过实际案例向大家展示操作过程，操作方法简单快捷，实用性强，希望这篇“原生js提示框并自动关闭怎么实现”文章能帮助大家解决问题。
js提示框，n秒后自动关闭，多用于简单的提示，无需人工参与，例如复制内容的时候提示复制成功或者后台提交信息的返回界面都可以用这个
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>JavaScript自动关闭窗口</title>
</head>
<body>
<input type="button" value="弹出alert框自动关闭" onClick="Alert('不点击确定三秒后自动关闭')">
<script>
//自动关闭提示框
function Alert(str) {
var msgw,msgh,bordercolor;
msgw=350;//提示窗口的宽度
msgh=80;//提示窗口的高度
titleheight=25 //提示窗口标题高度
bordercolor="#336699";//提示窗口的边框颜色
titlecolor="#99CCFF";//提示窗口的标题颜色
var sWidth,sHeight;
//获取当前窗口尺寸
sWidth = document.body.offsetWidth;
sHeight = document.body.offsetHeight;
// //背景div
var bgObj=document.createElement("div");
bgObj.setAttribute('id','alertbgDiv');
bgObj.style.position="absolute";
bgObj.style.top="0";
bgObj.style.background="#E8E8E8";
bgObj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
bgObj.style.opacity="0.6";
bgObj.style.left="0";
bgObj.style.width = sWidth + "px";
bgObj.style.height = sHeight + "px";
bgObj.style.zIndex = "10000";
document.body.appendChild(bgObj);
//创建提示窗口的div
var msgObj = document.createElement("div")
msgObj.setAttribute("id","alertmsgDiv");
msgObj.setAttribute("align","center");
msgObj.style.background="white";
msgObj.style.border="1px solid " + bordercolor;
msgObj.style.position = "absolute";
msgObj.style.left = "50%";
msgObj.style.font="12px/1.6em Verdana, Geneva, Arial, Helvetica, sans-serif";
//窗口距离左侧和顶端的距离
msgObj.style.marginLeft = "-225px";
//窗口被卷去的高+（屏幕可用工作区高/2）-150
msgObj.style.top = document.body.scrollTop+(window.screen.availHeight/2)-150 +"px";
msgObj.style.width = msgw + "px";
msgObj.style.height = msgh + "px";
msgObj.style.textAlign = "center";
msgObj.style.lineHeight ="25px";
msgObj.style.zIndex = "10001";
document.body.appendChild(msgObj);
//提示信息标题
var title=document.createElement("h5");
title.setAttribute("id","alertmsgTitle");
title.setAttribute("align","left");
title.style.margin="0";
title.style.padding="3px";
title.style.background = bordercolor;
title.style.filter="progid:DXImageTransform.Microsoft.Alpha(startX=20, startY=20, finishX=100, finishY=100,style=1,opacity=75,finishOpacity=100);";
title.style.opacity="0.75";
title.style.border="1px solid " + bordercolor;
title.style.height="18px";
title.style.font="12px Verdana, Geneva, Arial, Helvetica, sans-serif";
title.style.color="white";
title.innerHTML="提示信息";
document.getElementById("alertmsgDiv").appendChild(title);
//提示信息
var txt = document.createElement("p");
txt.setAttribute("id","msgTxt");
txt.style.margin="16px 0";
txt.innerHTML = str;
document.getElementById("alertmsgDiv").appendChild(txt);
//设置关闭时间
window.setTimeout("closewin()",2000);
}
function closewin() {
document.body.removeChild(document.getElementById("alertbgDiv"));
document.getElementById("alertmsgDiv").removeChild(document.getElementById("alertmsgTitle"));
document.body.removeChild(document.getElementById("alertmsgDiv"));
}
</script>
</body>
</html><html>
<head>
<title>JavaScript自动关闭窗口</title>
<meta http-equiv="content-Type" content="text/html;charset=gb2312">
</head>
<body>
<script>
function sAlert(strTitle,strContent){
var msgw,msgh,bordercolor;
msgw=300;//提示窗口的宽度
msgh=100;//提示窗口的高度
titleheight=25 //提示窗口标题高度
bordercolor="#336699";//提示窗口的边框颜色
titlecolor="#99CCFF";//提示窗口的标题颜色
var sWidth,sHeight;
sWidth=document.body.offsetWidth;
sHeight=screen.height;
var bgObj=document.createElement("div");
bgObj.setAttribute('id','bgDiv');
bgObj.style.position="absolute";
bgObj.style.top="0";
bgObj.style.background="#777";
bgObj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
bgObj.style.opacity="0.6";
bgObj.style.left="0";
bgObj.style.width=sWidth + "px";
bgObj.style.height=sHeight + "px";
bgObj.style.zIndex = "10000";
document.body.appendChild(bgObj);
var msgObj=document.createElement("div")
msgObj.setAttribute("id","msgDiv");
msgObj.setAttribute("align","center");
msgObj.style.background="white";
msgObj.style.border="1px solid " + bordercolor;
msgObj.style.position = "absolute";
msgObj.style.left = "50%";
msgObj.style.top = "50%";
msgObj.style.font="12px/1.6em Verdana, Geneva, Arial, Helvetica, sans-serif";
msgObj.style.marginLeft = "-225px" ;
msgObj.style.marginTop = -75+document.documentElement.scrollTop+"px";
msgObj.style.width = msgw + "px";
msgObj.style.height =msgh + "px";
msgObj.style.textAlign = "center";
msgObj.style.lineHeight ="25px";
msgObj.style.zIndex = "10001";
var title=document.createElement("h5");
title.setAttribute("id","msgTitle");
title.setAttribute("align","right");
title.style.margin="0";
title.style.padding="3px";
title.style.background=bordercolor;
title.style.filter="progid:DXImageTransform.Microsoft.Alpha(startX=20, startY=20, finishX=100, finishY=100,style=1,opacity=75,finishOpacity=100);";
title.style.opacity="0.75";
title.style.border="1px solid " + bordercolor;
title.style.height="18px";
title.style.font="12px Verdana, Geneva, Arial, Helvetica, sans-serif";
title.style.color="white";
title.style.cursor="pointer";
title.title = "点击关闭";
title.innerHTML="<table border='0′ width='100%'><tr><td align='left'>"+ strTitle +"</td><td>关闭</td></tr></table></div>";
title.οnclick=function(){
document.body.removeChild(bgObj);
document.getElementById("msgDiv").removeChild(title);
document.body.removeChild(msgObj);
}
document.body.appendChild(msgObj);
document.getElementById("msgDiv").appendChild(title);
var txt=document.createElement("p");
txt.style.margin="1em 0"
txt.setAttribute("id","msgTxt");
txt.innerHTML=strContent;
document.getElementById("msgDiv").appendChild(txt);
function closewin() {
document.body.removeChild(document.getElementById("msgDiv"));
}
}
</script>
<input type="button" value="弹出alert框自动关闭" onClick="sAlert('','你要输出的内容！')">
</body>
</html><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.popupStyle{
width:180px;
height:50px;
background-color: rgb(85,85,85);
/* display:none; */
color:#fff;
text-align:center;
line-height:50px;
border-radius:10px;
padding:0;
position:fixed;
z-index:1;
top:40%;
left:50%;
transform:translateX(-50%);
}
</style>
</head>
<body >
<h3 >Pop Up</h3>
<div >
<a href="#" rel="external nofollow" rel="external nofollow" onclick="stylePopup(styleMsg)">stylePopup</a>
<a href="#" rel="external nofollow" rel="external nofollow" onclick="domPopup(domMsg)">domPopup</a>
</div>
<span class="popupStyle" id="popup">popupStyle</span>
<script>
console.log(getComputedStyle(popup).display)
const styleMsg='Popup of style'
const domMsg='Popup of dom'
function stylePopup(message){
const popup=document.getElementById('popup')
console.log(popup)
popup.innerHTML=message || 'default messsage'
popup.style.display='block'
setTimeout(()=>{
popup.style.display='none'
},1000)
}
function domPopup(message){
const span=document.createElement('span')
span.innerHTML=message || 'default'
span.className='popupStyle'
span.style.display='block'
document.body.appendChild(span)
setTimeout(()=>{
span.remove()
},1000)
}
</script>
</body>
</html>关于“原生js提示框并自动关闭怎么实现”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识，可以关注亿速云行业资讯频道，小编每天都会为大家更新不同的知识点。
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