修改 javascript 中alert样式

最新推荐文章于 2023-02-15 10:00:57 发布

不净之心

最新推荐文章于 2023-02-15 10:00:57 发布

阅读量114

点赞数

CC 4.0 BY-SA版权

分类专栏： Javascript 文章标签： javascript ViewUI

本文链接：https://blog.youkuaiyun.com/pyzheng/article/details/84736571

Javascript 专栏收录该内容

145 篇文章

订阅专栏

本文提供了一段JavaScript代码，用于创建一个带有自定义样式的弹出警告框，包括背景颜色、居中显示、关闭按钮等功能。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

[url]http://my.oschina.net/u/2001537/blog/489054[/url]

window.alert = function(str) 
{ 
var shield = document.createElement("DIV"); 
shield.id = "shield"; 
shield.style.position = "absolute"; 
shield.style.left = "0px"; 
shield.style.top = "0px"; 
shield.style.width = "100%"; 
shield.style.height = document.body.scrollHeight+"px"; 
//弹出对话框时的背景颜色 
shield.style.background = "#fff"; 
shield.style.textAlign = "center"; 
shield.style.zIndex = "25"; 
//背景透明 IE有效 
//shield.style.filter = "alpha(opacity=0)"; 
var alertFram = document.createElement("DIV"); 
alertFram.id="alertFram"; 
alertFram.style.position = "absolute"; 
alertFram.style.left = "50%"; 
alertFram.style.top = "50%"; 
alertFram.style.marginLeft = "-225px"; 
alertFram.style.marginTop = "-75px"; 
alertFram.style.width = "450px"; 
alertFram.style.height = "150px"; 
alertFram.style.background = "#ff0000"; 
alertFram.style.textAlign = "center"; 
alertFram.style.lineHeight = "150px"; 
alertFram.style.zIndex = "300"; 
strHtml = "<ul style=\"list-style:none;margin:0px;padding:0px;width:100%\">\n"; 
strHtml += " <li style=\"background:#DD828D;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;\">[自定义提示]</li>\n"; 
strHtml += " <li style=\"background:#fff;text-align:center;font-size:12px;height:120px;line-height:120px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\">"+str+"</li>\n"; 
strHtml += " <li style=\"background:#FDEEF4;text-align:center;font-weight:bold;height:25px;line-height:25px; border:1px solid #F9CADE;\"><input type=\"button\" value=\"确 定\" onclick=\"doOk()\" /></li>\n"; 
strHtml += "</ul>\n"; 
alertFram.innerHTML = strHtml; 
document.body.appendChild(alertFram); 
document.body.appendChild(shield); 
var ad = setInterval("doAlpha()",5); 
this.doOk = function(){ 
alertFram.style.display = "none"; 
shield.style.display = "none"; 
} 
alertFram.focus(); 
document.body.onselectstart = function(){return false;}; 
}