这里有新鲜出炉的 Javascript 教程,程序狗速度看过来!
Javascript 是一种由 Netscape 的 LiveScript 发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如 Perl,遗留的速度问题,为客户提供更流畅的浏览效果。
下面小编就为大家带来一篇浅谈 javascript 中的三种弹窗。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧
js 中三种弹窗
1)alert 弹出警告 无返回值---------alert('第一行 \ n 第二行');
2)confirm() 选择确定或取消,返回 t 或 f----var result = confirm('是否删除!');
3)prompt() 弹出输入框,返回输入内容----var value = prompt('输入你的名字:','请在这里输入名字');
当然也可以自定义好看的样式。下面代码有问题明天再改。
- <script>
- //window.confirm
- //prompt
- window.alert = function(title, 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;\">" + title + "</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 #e85727;\"><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;
- };
- }
- </script>
来源: http://www.phperz.com/article/17/0519/331011.html