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var obj = event.srcElement;
var objs = document.getElementsByTagName('INPUT');
for(var i=0; i< objs.length; i++)
{
if(objs[i].type.toLowerCase() == 'submit')
{
objs[i].disabled = true;
}
}
} //--> < /script>//ASP.NETÖзÀÖ¹Ò³Ãæ¶à´ÎÌá½»µÄ´úÂë:asp.net
public class PreventMultiClick : System.Web.UI.Page {
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Button Button2;
protected System.Web.UI.WebControls.LinkButton LinkButton1;
 protected System.Web.UI.WebControls.Button Button3;
 private void Page_Load(object sender, System.EventArgs e)
{
this.GetPostBackEventReference(this.Button3);
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<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<head id="Head1" runat="server">
    <title>Show Button</title>
</head>
    <form id="form1" runat="server">
    <div>
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Page.Response.Clear();
bool success = ResponseFile(Page.Request, Page.Response, "Ä¿µÄÎļþÃû³Æ", @"Ô´Îļþ·¾¶", 1024000);
if (!success) Response.Write("ÏÂÔØÎļþ³ö´í£¡"); Page.Response.End();
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public static bool ResponseFile(HttpRequest _Request,HttpResponse _Response,string _fileName,string _fullPath, long _speed) {
try
{
FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
BinaryReader br = new BinaryReader(myFile);
try
{
_Response.AddHeader("Accept-Ranges", "bytes"
);
_Response.Buffer = false;
long fileLength = myFile.Length;
long startBytes = 0; double pack = 10240;
//10K bytes
//int sleep = 200;
//ÿÃë5´Î ¼´5*10K bytesÿÃë int sleep = (int)Math.Floor(1000 * pack / _speed) + 1;
if (_Request.Headers["Range"] != null)
{
_Response.StatusCode = 206;
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