1. oncontextmenu="window.event.returnvalue=false" 将彻底屏蔽鼠标右键 <BR><table border oncontextmenu=return(false)><td>no</table> 可用于Table <BR>2. <body onselectstart="return false"> 取消选取、防止复制 <BR> <BR>3. onpaste="return false" 不准粘贴 <BR> <BR>4. oncopy="return false;" oncut="return false;" 防止复制 <BR> <BR>5. <link rel="Shortcut Icon" href="favicon.ico"> IE地址栏前换成自己的图标 <BR> <BR>6. <link rel="Bookmark" href="favicon.ico"> 可以在收藏夹中显示出你的图标 <BR> <BR>7. <input style="ime-mode:disabled"> 关闭输入法 <BR> <BR>8. 永远都会带着框架 <BR><script language="javascript"><!-- <BR>if (window == top)top.location.href = "frames.htm"; //frames.htm为框架网页 <BR>// --></script> <BR> <BR>9. 防止被人frame <BR><script LANGUAGE=javascript><!-- <BR>if (top.location != self.location)top.location=self.location; <BR>// --></script> <BR> <BR>10. <noscript><iframe src=*.html></iframe></noscript> 网页将不能被另存为 <BR> <BR>11. <input type=button value=查看网页源代码 <BR>onclick="window.location = ’view-source:’+ ’<a href="http://www.csdn.net/’" target="_blank" ><FONT color=#000000>http://www.csdn.net/’</FONT></A>"> <BR> <BR>12. 怎样通过asp的手段来检查来访者是否用了代理 <BR><% if Request.Servervariables("HTTP_X_FORWARDED_FOR")<>"" then <BR>response.write "<font color=#FF0000>您通过了代理服务器,"& _ <BR>"真实的IP为"&Request.Servervariables("HTTP_X_FORWARDED_FOR") <BR>end if <BR>%> <BR> <BR>13. 取得控件的绝对位置 <BR> <BR>//javascript <BR><script language="javascript"> <BR>function getIE(e){ <BR>var t=e.offsetTop; <BR>var l=e.offsetLeft; <BR>while(e=e.offsetParent){ <BR>t+=e.offsetTop; <BR>l+=e.offsetLeft; <BR>} <BR>alert("top="+t+"\nleft="+l); <BR>} <BR></script> <BR> <BR>//VBscript <BR><script language="VBscript"><!-- <BR>function getIE() <BR>dim t,l,a,b <BR>set a=document.all.img1 <BR>t=document.all.img1.offsetTop <BR>l=document.all.img1.offsetLeft <BR>while a.tagName<>"BODY" <BR>set a = a.offsetParent <BR>t=t+a.offsetTop <BR>l=l+a.offsetLeft <BR>wend <BR>msgbox "top="&t&chr(13)&"left="&l,64,"得到控件的位置" <BR>end function <BR>--></script> <BR> <BR>14. 光标是停在文本框文字的最后 <BR><script language="javascript"> <BR>function cc() <BR>{ <BR>var e = event.srcElement; <BR>var r =e.createTextRange(); <BR>r.moveStart(’character’,e.value.length); <BR>r.collapse(true); <BR>r.select(); <BR>} <BR></script> <BR><input type=text name=text1 value="123" onfocus="cc()"> <BR> <BR>15. 判断上一页的来源 <BR>asp: <BR>request.servervariables("HTTP_REFERER") <BR> <BR>javascript : <BR>document.referrer <BR> <BR>16. 最小化、最大化、关闭窗口 <BR><object id=hh1 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> <BR><param name="Command" value="Minimize"></object> <BR><object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> <BR><param name="Command" value="Maximize"></object> <BR><OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"> <BR>< ARAM NAME="Command" value="Close"></OBJECT> <BR> <BR><input type=button value=最小化 onclick=hh1.Click()> <BR><input type=button value=最大化 onclick=hh2.Click()> <BR><input type=button value=关闭 onclick=hh3.Click()> <BR>本例适用于IE <BR> <BR>17. <BR><% <BR>’定义数据库连接的一些常量 <BR>Const adOpenForwardOnly = 0 ’游标只向前浏览记录,不支持分页、Recordset、BookMark <BR>Const adOpenKeyset = 1 ’键集游标,其他用户对记录说做的修改将反映到记录集中,但其他用户增加或删除记录不会反映到记录集中。支持分页、Recordset、BookMark <BR>Const adOpenDynamic = 2 ’动态游标功能最强,但耗资源也最多。用户对记录说做的修改,增加或删除记录都将反映到记录集中。支持全功能浏览(ACCESS不支持)。 <BR>Const adOpenStatic = 3 ’静态游标,只是数据的一个快照,用户对记录说做的修改,增加或删除记录都不会反映到记录集中。支持向前或向后移动 <BR> <BR>Const adLockReadOnly = 1 ’锁定类型,默认的,只读,不能作任何修改 <BR>Const adLockPessimistic = 2 ’当编辑时立即锁定记录,最安全的方式 <BR>Const adLockOptimistic = 3 ’只有在调用Update方法时才锁定记录集,而在此前的其他操作仍可对当前记录进行更改、插入和删除等 <BR>Const adLockBatchOptimistic = 4 ’当编辑时记录不会被锁定,而更改、插入和删除是在批处理方式下完成的 <BR> <BR>Const adCmdText = &H0001 <BR>Const adCmdTable = &H0002 <BR>%> <BR> <BR>18. 网页不会被缓存 <BR>HTM网页 <BR><meta HTTP-EQUIV="pragma" CONTENT="no-cache"> <BR><meta HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> <BR><meta HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT"> <BR>或者<meta HTTP-EQUIV="expires" CONTENT="0"> <BR>ASP网页 <BR>Response.Expires = -1 <BR>Response.ExpiresAbsolute = Now() - 1 <BR>Response.cachecontrol = "no-cache" <BR> HP网页 <BR>header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); <BR>header("Cache-Control: no-cache, must-revalidate"); <BR>header(" ragma: no-cache"); <BR> <BR>19. 检查一段字符串是否全由数字组成 <BR><script language="javascript"><!-- <BR>function checkNum(str){return str.match(/\D/)==null} <BR>alert(checkNum("1232142141")) <BR>alert(checkNum("123214214a1")) <BR>// --></script> <BR> <BR>20. 获得一个窗口的大小 <BR>document.body.clientWidth,document.body.clientHeight <BR> <BR>21. 怎么判断是否是字符 <BR>if (/[^\x00-\xff]/g.test(s)) alert("含有汉字"); <BR>else alert("全是字符"); <BR> <BR>22.TEXTAREA自适应文字行数的多少 <BR><textarea rows=1 name=s1 cols=27 onpropertychange="this.style.posHeight=this.scrollHeight"> <BR></textarea> <BR> <BR>23. 日期减去天数等于第二个日期 <BR><script language=javascript> <BR>function cc(dd,dadd) <BR>{ <BR>//可以加上错误处理 <BR>var a = new Date(dd) <BR>a = a.valueOf() <BR>a = a - dadd * 24 * 60 * 60 * 1000 <BR>a = new Date(a) <BR>alert(a.getFullYear() + "年" + (a.getMonth() + 1) + "月" + a.getDate() + "日") <BR>} <BR>cc("12/23/2002",2) <BR></script> <BR> <BR>24. 选择了哪一个Radio <BR><HTML><script language="vbscript"> <BR>function checkme() <BR>for each ob in radio1 <BR>if ob.checked then window.alert ob.value <BR>next <BR>end function <BR></script><BODY> <BR><INPUT name="radio1" type="radio" value="style" checked>style <BR><INPUT name="radio1" type="radio" value="barcode">Barcode <BR><INPUT type="button" value="check" onclick="checkme()"> <BR></BODY></HTML> <BR> <BR>25.获得本页url的request.servervariables("")集合 <BR>Response.Write "<TABLE border=1><!-- Table Header --><TR><TD><B>variables</B></TD><TD><B>value</B></TD></TR>" <BR>for each ob in Request.Servervariables <BR>Response.Write "<TR><TD>"&ob&"</TD><TD>"&Request.Servervariables(ob)&"</TD></TR>" <BR>next <BR>Response.Write "</TABLE>" <BR> <BR>26. <BR>本机ip<%=request.servervariables("remote_addr")%> <BR>服务器名<%=Request.Servervariables("SERVER_NAME")%> <BR>服务器IP<%=Request.Servervariables("LOCAL_ADDR")%> <BR>服务器端口<%=Request.Servervariables("SERVER_PORT")%> <BR>服务器时间<%=now%> <BR>IIS版本<%=Request.Servervariables"SERVER_SOFTWARE")%> <BR>脚本超时时间<%=Server.scriptTimeout%> <BR>本文件路径<%=server.mappath(Request.Servervariables("script_NAME"))%> <BR>服务器CPU数量<%=Request.Servervariables("NUMBER_OF_PROCESSORS")%> <BR>服务器解译引擎<%=scriptEngine & "/"& scriptEngineMajorVersion &"."&scriptEngineMinorVersion&"."& scriptEngineBuildVersion %> <BR>服务器操作系统<%=Request.Servervariables("OS")%> <BR> <BR>27.ENTER键可以让光标移到下一个输入框 <BR><input onkeydown="if(event.keyCode==13)event.keyCode=9"> <BR> <BR>28. 检测某个网站的链接速度: <BR>把如下代码加入<body>区域中: <BR><script language=javascript> <BR>tim=1 <BR>setInterval("tim++",100) <BR>b=1 <BR> <BR>var autourl=new Array() <BR>autourl[1]www.njcatv.net" <BR>autourl[2]="javacool.3322.net" <BR>autourl[3]www.sina.com.cn" <BR>autourl[4]="<a href="http://www.nuaa.edu.cn/" target="_blank" ><FONT color=#000000>www.nuaa.edu.cn</FONT></A>" <BR>autourl[5]www.cctv.com" <BR> <BR>function butt(){ <BR>document.write("<form name=autof>") <BR>for(var i=1;i<autourl.length;i++) <BR>document.write("<input type=text name=txt"+i+" size=10 value=测试中……> =》<input type=text name=url"+i+" size=40> =》<input type=button value=GO onclick=window.open(this.form.url"+i+".value)><br/>") <BR>document.write("<input type=submit value=刷新></form>") <BR>} <BR>butt() <BR>function auto(url){ <BR>document.forms[0]["url"+b].value=url <BR>if(tim>200) <BR>{document.forms[0]["txt"+b].value="链接超时"} <BR>else <BR>{document.forms[0]["txt"+b].value="时间"+tim/10+"秒"} <BR>b++ <BR>} <BR>function run(){for(var i=1;i<autourl.length;i++)document.write("<img src=http://"+autourl+"/"+Math.random()+" width=1 height=1 onerror=auto(’http://"+autourl+"’)>")} <BR>run()</script> <BR> <BR>29. 各种样式的光标 <BR>auto :标准光标 <BR>default :标准箭头 <BR>hand :手形光标 <BR>wait :等待光标 <BR>text :I形光标 <BR>vertical-text :水平I形光标 <BR>no-drop :不可拖动光标 <BR>not-allowed :无效光标 <BR>help :?帮助光标 <BR>all-scroll :三角方向标 <BR>move :移动标 <BR>crosshair :十字标 <BR>e-resize <BR>n-resize <BR>nw-resize <BR>w-resize <BR>s-resize <BR>se-resize <BR>sw-resize |