javascript實現簡單的進度條

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javascript實現簡單的進度條

   本文給大家分享2個javascript實現簡單的進度條,一個是個人製作一個是網友實現的,都很不錯,這裡推薦給大家。

  樣本一:

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<!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:

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<!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)

{

//設定進度條置中

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 = "";

 

//設定進度條百分比

ProgressBar.style.width = pos + "%";

ProgressText.innerHTML = pos + "%";

}

 

//完成後隱藏進度條

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>

  後台代碼,Default.aspx.cs:

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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顯示進度條介面

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,如載入資料等

System.Threading.Thread.Sleep(50);

}

 

finishProgress();

}

}

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