javascript实现简单的进度条

示例一：

 


0%

再来分享一个结合.net的

建立一个WEB工程，添加新项->HTML页面，命名为ProgressBar.htm，内容如下：

后台代码，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()
  {
    //根据ProgressBar.htm显示进度条界面
    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 = "";
    Response.Write(jsBlock);
    Response.Flush();
  }

  private void finishProgress()
  {
    string jsBlock = "";
    Response.Write(jsBlock);
    Response.Flush();
  }

  private void Page_Load(object sender, System.EventArgs e) 
  {
    beginProgress();

    for (int i = 1; i <= 100; i++)
    {
      setProgress(i);

      //此处用线程休眠代替实际的操作，如加载数据等
      System.Threading.Thread.Sleep(50);
    }

    finishProgress(); 
  } 
}