js代码汇总

来源：www.45fan.com 2016-09-06 15:26:05

js代码汇总

<!--

1. oncontextmenu="window.event.returnValue=false" 将彻底屏蔽鼠标右键
<table border oncontextmenu=return(false)><td>no</table> 可用于Table

2. <body onselectstart="return false"> 取消选娶防止复制

3. onpaste="return false" 不准粘贴

4. oncopy="return false;" oncut="return false;" 防止复制

5. <link rel="Shortcut Icon" href="favicon.ico"> IE地址栏前换成自己的图标

6. <link rel="Bookmark" href="favicon.ico"> 可以在收藏夹中显示出你的图标

7. <input style="ime-mode:disabled"> 关闭输入法

8. 永远都会带着框架
<script language="JavaScript"></script>

9. 防止被人frame
<SCRIPT LANGUAGE=JAVASCRIPT></SCRIPT>

10. <noscript><iframe src=*.html></iframe></noscript> 网页将不能被另存为

11. <input type=button value=查看网页源代码
onclick="window.location = 'view-source:'+ 'http://www.csdn.net/'">

12. 一段JavaScript的关机代码

win98/me
<script language="JavaScript">
var wsh = new ActiveXObject("WScript.Shell");
wsh.Run("rundll32.exe user.exe,exitWindows");
</script>

win2000 or xp
<script language="JavaScript">
var wsh = new ActiveXObject("WScript.Shell");
wsh.sendKeys("^{ESC}");
wsh.sendKeys("{UP}~S~");
</script>

13. 取得控件的绝对位置

//Javascript
<script language="Javascript">
function getIE(e){
var t=e.offsetTop;
var l=e.offsetLeft;
while(e=e.offsetParent){
t+=e.offsetTop;
l+=e.offsetLeft;
}
alert("top="+t+"/nleft="+l);
}
</script>

//VBScript
<script language="VBScript"></script>

14. 光标是停在文本框文字的最后
<script language="javascript">
function cc()
{
var e = event.srcElement;
var r =e.createTextRange();
r.moveStart('character',e.value.length);
r.collapse(true);
r.select();
}
</script>
<input type=text name=text1 value="123" onfocus="cc()">

15. 调用客户端的程序
<script>
var wsh=new ActiveXObject("wscript.shell")
wsh.run("notepad.exe")
</script>

16. 最小化、最大化、关闭窗口
<object id=hh1 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<param name="Command" value="Minimize"></object>
<object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<param name="Command" value="Maximize"></object>
<OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">
<PARAM NAME="Command" VALUE="Close"></OBJECT>

<input type=button value=最小化 onclick=hh1.Click()>
<input type=button value=最大化 onclick=hh2.Click()>
<input type=button value=关闭 onclick=hh3.Click()>
本例适用于IE

17. 屏蔽 Alt+F4
<script language=Javascript>
function document.onkeydown()
{
if ((window.event.altKey)&&(window.event.keyCode==115)){
window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");
return false;}
}
</script>

18. 自己动手为string添加Trim
<script language=Javascript>
String.prototype.Trim=function(){return this.replace(/(^/s*)|(/s*$)/g,"");}
String.prototype.Ltrim = function(){return this.replace(/(^/s*)/g, "");}
String.prototype.Rtrim = function(){return this.replace(/(/s*$)/g, "");}
var str = " abc de ";
alert(str.Trim());
</script>

19. 检查一段字符串是否全由数字组成
<script language="Javascript"></script>

20. 获得一个窗口的大小
document.body.clientWidth,document.body.clientHeight

21. 怎么判断是否是字符
if (/[^/x00-/xff]/g.test(s)) alert("含有汉字");
else alert("全是字符");

22.TEXTAREA自适应文字行数的多少
<textarea rows=1 name=s1 cols=27 onpropertychange="this.style.posHeight=this.scrollHeight">
</textarea>

23. 日期减去天数等于第二个日期
<script language=Javascript>
function cc(dd,dadd)
{
//可以加上错误处理
var a = new Date(dd)
a = a.valueOf()
a = a - dadd * 24 * 60 * 60 * 1000
a = new Date(a)
alert(a.getFullYear() + "年" + (a.getMonth() + 1) + "月" + a.getDate() + "日")
}
cc("12/23/2002",2)
</script>

24. 选择了哪一个Radio
<HTML><script language="vbscript">
function checkme()
for each ob in radio1
if ob.checked then window.alert ob.value
next
end function
</script><BODY>
<INPUT name="radio1" type="radio" value="style" checked>Style
<INPUT name="radio1" type="radio" value="barcode">Barcode
<INPUT type="button" value="check" onclick="checkme()">
</BODY></HTML>

25.获得本页url的request.servervariables("")集合
Response.Write "<TABLE border=1><TR><TD><B>Variables</B></TD><TD><B>Value</B></TD></TR>"
for each ob in Request.ServerVariables
Response.Write "<TR><TD>"&ob&"</TD><TD>"&Request.ServerVariables(ob)&"</TD></TR>"
next
Response.Write "</TABLE>"

26.
本机ip<%=request.servervariables("remote_addr")%>
服务器名<%=Request.ServerVariables("SERVER_NAME")%>
服务器IP<%=Request.ServerVariables("LOCAL_ADDR")%>
服务器端口<%=Request.ServerVariables("SERVER_PORT")%>
服务器时间<%=now%>
IIS版本<%=Request.ServerVariables"SERVER_SOFTWARE")%>
脚本超时时间<%=Server.ScriptTimeout%>
本文件路径<%=server.mappath(Request.ServerVariables("SCRIPT_NAME"))%>
服务器CPU数量<%=Request.ServerVariables("NUMBER_OF_PROCESSORS")%>
服务器解译引擎<%=ScriptEngine & "/"& ScriptEngineMajorVersion &"."&ScriptEngineMinorVersion&"."& ScriptEngineBuildVersion %>
服务器操作系统<%=Request.ServerVariables("OS")%>

27.ENTER键可以让光标移到下一个输入框
<input onkeydown="if(event.keyCode==13)event.keyCode=9">

28. 检测某个网站的链接速度：
把如下代码加入<body>区域中:
<script language=Javascript>
tim=1
setInterval("tim++",100)
b=1

var autourl=new Array()
autourl[1]="http://www.njcatv.net"
autourl[2]="javacool.3322.net"
autourl[3]="http://www.sina.com.cn"
autourl[4]="http://www.nuaa.edu.cn"
autourl[5]="http://www.cctv.com"

29. 各种样式的光标
auto ：标准光标
default ：标准箭头
hand ：手形光标
wait ：等待光标
text ：I形光标
vertical-text ：水平I形光标
no-drop ：不可拖动光标
not-allowed ：无效光标
help ：?帮助光标
all-scroll ：三角方向标
move ：移动标
crosshair ：十字标
e-resize
n-resize
nw-resize
w-resize
s-resize
se-resize
sw-resize

30.实现另存为:
<input type=button value=保存 onclick=document.execCommand('SaveAs')>

31.窗口最大化(全屏显示不带工具栏等):
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
</head>
<input type=button value=最大化 onclick="javascript:new ActiveXObject('wscript.shell').sendKeys('{F11}')">
</BODY>
</HTML>

32.

<OBJECT classid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 height=0 id=WebBrowser width=0>
</OBJECT>
<input onclick=document.all.WebBrowser.ExecWB(1,1) type=button value=打开 name=Button1>
<input onclick=document.all.WebBrowser.ExecWB(4,1) type=button value=另存为 name=Button2>
<input onclick=document.all.WebBrowser.ExecWB(10,1) type=button value=属性 name=Button3>
<input onclick=document.all.WebBrowser.ExecWB(6,1) type=button value=打印 name=Button>
<input onclick=document.all.WebBrowser.ExecWB(8,1) type=button value=页面设置 name=Button4>
<br/>
<input onclick=window.location.reload() type=button value=刷新 name=refresh>
<input onclick="window.external.ImportExportFavorites(true,'');" type=button value=导入收藏夹 name=Button5>
<input onclick="window.external.ImportExportFavorites(false,'');" type=button value=导出收藏夹 name=Button32>
<input onclick="window.external.AddFavorite(location.href, document.title)" type=button value=加入收藏夹 name=Button22>
<br/>
<input onclick="window.external.ShowBrowserUI('OrganizeFavorites', null)" type=button value=整理收藏夹 name=Submit2>
<input onclick='window.location="view-source:" + window.location.href' type=button value=查看源文件 name=Button7>
<input onclick="window.external.ShowBrowserUI('LanguageDialog', null)" type=button value=语言设置 name=Button6>
<input onclick=history.go(1) type=submit value=前进 name=Submit>
<input onclick=history.go(-1) type=submit value=后退 name=Submit2>
要完成此效果把如下代码加入到<body>区域中

<input type="button" name="Button" value="点击保存页面" onClick="document.all.WebBrowser.ExecWB(4,1)">
<object id="WebBrowser" width=0 height=0 classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2">
</object>
………………………………………………………………………………………………………………………………
鼠标自定义
<script language=javascript>var Loaded=false;var Flag=false;</script>
<script src='http://files.cometsystems.com/&#106avascript/lc2000.js'
language=javascript></script>
<script language=javascript>if(Loaded&&Flag)TheCometCursor('cd_electric',0,626);</script>

要完成此效果把如下代码加入到<head>区域中

<SCRIPT LANGUAGE="javascript">

</script>

<body><SCRIPT LANGUAGE="JavaScript">
var s = "网页正文部分宽："+ document.body.clientWidth;
s += "/r/n网页正文部分高："+ document.body.clientHeight;
s += "/r/n网页正文部分上："+ window.screenTop;
s += "/r/n网页正文部分左："+ window.screenLeft;
s += "/r/n屏幕分辨率的高："+ window.screen.height;
s += "/r/n屏幕分辨率的宽："+ window.screen.width;
s += "/r/n屏幕可用工作区高度："+ window.screen.availHeight;
s += "/r/n屏幕可用工作区宽度："+ window.screen.availWidth;
alert(s);
</SCRIPT>

33.取下拉菜单的值
document.all("listbox1").options[document.all("listbox1").selectedIndex].value
document.all("listbox1").options[document.all("listbox1").selectedIndex].text

-->

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js代码汇总

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