繁體中文当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 一个已封装好的漂亮进度条
- Javascript
- AJAX教程(14)：通过XMLHTTP加载XML文件
- AJAX教程(15)：通过XMLHTTP进行一次HEAD请求
- AJAX教程(16)：通过XMLHTTP进行一次指定的HEAD请求
- AJAX教程(17)：把XML文件显示为HTML表格
- JS通过WMI获取客户端硬件信息
- JavaScript中使用远程脚本
- 关于Ajax技术的注意事项
- XMLHttpRequest创建智能表单
- iframe创建智能表单
- JS教程:线小测试程序
- 在Web页面中使用计时器
- 将事件处理器作为HTML标记的属性
- 事件处理器作为浏览器对象的属性
- Math对象应用详解
- random()方法和pow()方法
- charAt()方法和charCodeAt()方法
- Number对象常用的toFixed()方法
- JS教程:为什么尽量用局部变量代替全局变量
- 解决JavaScript循环中的过多操作
- 处理提示“脚本运行时间过长的提示框”问题
Javascript 中的 一个已封装好的漂亮进度条
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-10-12 浏览: 188 ::
收藏到网摘: n/a
复制代码 代码如下:
<body>
<input type="button" value="start" onclick="processBar.changeMode();if(processBar.isMoving){this.value='Stop';}else{this.value='Start';}">
</body>
<script>
document.execCommand("BackgroundImageCache",false,true);
function ProcessBar(){
this.width = 256;
this.height = 18;
this.top = 0;
this.left = 0;
this.backImg = "process_back.gif";
this.foreImg = "process.gif";
this.backDiv = document.createElement("div");
this.foreDiv = document.createElement("div");
this.fontDiv = document.createElement("div");
this.isMoving = false;
this.nowLength = 0;
this.moveInterval = 100;
this.moveRange = 1;
this.timer;
ProcessBar.nowObj = this;
this.init = function(){
this.foreDiv.style.backgroundImage = "url(" + this.foreImg + ")";
this.foreDiv.style.backgroundRepeat = "no-repeat";
this.foreDiv.style.position = "absolute";
this.foreDiv.style.width = this.nowLength;
this.foreDiv.style.height = this.height;
this.foreDiv.style.top = 0;
this.foreDiv.style.left = 0;
this.fontDiv.style.background = "transparent";
this.fontDiv.style.position = "absolute";
this.fontDiv.style.width = this.width;
this.fontDiv.style.height = this.height;
this.fontDiv.style.top = 2;
this.fontDiv.style.left = 0;
this.fontDiv.style.textAlign = "center";
this.fontDiv.style.fontSize = "13px";
this.fontDiv.appendChild(document.createTextNode(" "));
this.backDiv.style.backgroundImage = "url(" + this.backImg + ")";
this.backDiv.style.backgroundRepeat = "no-repeat";
this.backDiv.style.position = "absolute";
this.backDiv.style.width = this.width;
this.backDiv.style.height = this.height;
this.backDiv.style.top = this.top;
this.backDiv.style.left = this.left;
this.backDiv.appendChild(this.foreDiv);
this.backDiv.appendChild(this.fontDiv);
document.body.appendChild(this.backDiv);
}
this.changeMode = function(){
this.isMoving = !this.isMoving;
if(this.isMoving){
this.timer = window.setInterval(ProcessBar.nowObj.moving, this.moveInterval);
}else{
window.clearInterval(this.timer);
}
}
this.moving = function(){
ProcessBar.nowObj.nowLength += ProcessBar.nowObj.moveRange;
ProcessBar.nowObj.foreDiv.style.width = ProcessBar.nowObj.nowLength;
ProcessBar.nowObj.fontDiv.firstChild.data = Math.ceil((ProcessBar.nowObj.nowLength/ProcessBar.nowObj.width )*100) + "%";
if(ProcessBar.nowObj.nowLength >= ProcessBar.nowObj.width ){
window.clearInterval(ProcessBar.nowObj.timer);
ProcessBar.nowObj.fontDiv.firstChild.data = "Complete!";
}
}
}
var processBar = new ProcessBar();
processBar.backImg = "/upload/tech/20091012/20091012084645_7647966b7343c29048673252e490f736.gif"; processBar.foreImg = "/upload/tech/20091012/20091012084648_f0935e4cd5920aa6c7c996a5ee53a70f.gif"; processBar.top = 100;
processBar.left = 20;
processBar.init();
</script>
点击运行可以看到效果:
[Ctrl+A 全选 提示:你可先修改部分代码,再按运行]
[Ctrl+A 全选 提示:你可先修改部分代码,再按运行]
评论 (0) All
