示例一：
<!doctype html><html><head><meta charset="utf8"><title>Process Bar</title><script>var t;function s(c){ if(c<=100) { val.style.width=c+"%"; percent.innerHTML=c+"%"; btn.disabled=true; btnp.disabled=false; c=c+10; t=setTimeout("s("+c+")",500); } else { clearTimeout(t); btnc.disabled=false; btnp.disabled=true; return; }}function c(){ clearTimeout(t); val.style.width="0px"; percent.innerHTML="0%"; btn.disabled=false; btnc.disabled=true; btnp.disabled=true; btnp.value='Pause';}function p(){ var temp; if('Pause' == btnp.value) { clearTimeout(t); btnp.value='Go on'; btnc.disabled=false; } else { temp=val.style.width; btnp.value='Pause'; var k=parseInt(delEnd(temp)); s(k); btnc.disabled=true; } }function delEnd(str){ var temp=""; for(var i=0; i < str.length-1; i++) { temp=temp+str[i]; } return temp;}</script></head><body><div id="bar" style="width:300px; height:30px; border:solid 1px; float:left;"> <div id="val" style="height:100%; background-color:#03F; width:0px;"></div></div><div id="percent" style="float:left; line-height:30px;">0%</div><div style="clear:both"></div><br /><input id="btn" type="button" value="Start" onClick="s(0)" /><br /><input id="btnc" type="button" value="Clear" onClick="c()" disabled /><br /><input id="btnp" type="button" value="Pause" onClick="p()" disabled /></body></html>再來分享一個結合.net的
建立一個WEB工程，添加新項->HTML頁面，命名為ProgressBar.htm，內容如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" id="mainWindow"><head> <title>無標題頁</title> <script language="javascript"> function SetPorgressBar(pos) { //設置進度條居中 var screenHeight = window["mainWindow"].offsetHeight; var screenWidth = window["mainWindow"].offsetWidth; ProgressBarSide.style.width = Math.round(screenWidth / 2); ProgressBarSide.style.left = Math.round(screenWidth / 4); ProgressBarSide.style.top = Math.round(screenHeight / 2); ProgressBarSide.style.height = "21px"; ProgressBarSide.style.display = ""; //設置進度條百分比 ProgressBar.style.width = pos + "%"; ProgressText.innerHTML = pos + "%"; } //完成后隱藏進度條 function SetCompleted() { ProgressBarSide.style.display = "none"; } </script> </head> <body> <div id="ProgressBarSide" style="position:absolute;height:21x;width:100px;color:Silver;border-width:1px;border-style:Solid;display:none"> <div id="ProgressBar" style="position:absolute;height:21px;width:0%;background-color:#3366FF"></div> <div id="ProgressText" style="position:absolute;height:21px;width:100%;text-align:center"></div> </div> </body></html>后臺代碼，Default.aspx.cs：
using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Threading;using System.IO;public partial class _Default : System.Web.UI.Page { private void beginProgress() { //根據ProgressBar.htm顯示進度條界面 string templateFileName = Path.Combine(Server.MapPath("."), "ProgressBar.htm"); StreamReader reader = new StreamReader(@templateFileName,System.Text.Encoding.GetEncoding("GB2312")); string html = reader.ReadToEnd(); reader.Close(); Response.Write(html); Response.Flush(); } private void setProgress(int percent) { string jsBlock = "<script>SetPorgressBar('" + percent.ToString() + "'); </script>"; Response.Write(jsBlock); Response.Flush(); } private void finishProgress() { string jsBlock = "<script>SetCompleted();</script>"; Response.Write(jsBlock); Response.Flush(); } private void Page_Load(object sender, System.EventArgs e) { beginProgress(); for (int i = 1; i <= 100; i++) { setProgress(i); //此處用線程休眠代替實際的操作，如加載數據等 System.Threading.Thread.Sleep(50); } finishProgress(); } }新聞熱點
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