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HTML 代码常用技巧

IE Javascript快捷键操作 1. oncontextmenu="window.event.returnValue=http://www.mamicode.com/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"> 取消选取、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=http://www.mamicode.com/"favicon.ico"> IE地址栏前换成自己的图标 6. <link rel="Bookmark" href=http://www.mamicode.com/"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"><!-- if (window == top)top.location.href = http://www.mamicode.com/"frames.htm"; //frames.htm为框架网页 // --></script> 9. 防止被人frame <SCRIPT LANGUAGE=javascript><!-- if (top.location != self.location)top.location=self.location; // --></SCRIPT> 10. <noscript><iframe src=http://www.mamicode.com/../*.HTML></iframe></noscript> 网页将不能被另存为 11. <input type=button value=http://www.mamicode.com/查看网页源代码 "window.location = ‘view-source:‘+ ‘http://www.csdn.net/‘"> 12. 怎样通过ASP的手段来检查来访者是否用了代理 <% if Request.ServerVariables("HTTP_X_FORWARDED_FOR")<>"" then response.write "<font color=#FF0000>您通过了代理服务器,"& _ "真实的IP为"&Request.ServerVariables("HTTP_X_FORWARDED_FOR") end if %> 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"><!-- function getIE() dim t,l,a,b set a=document.all.img1 t=document.all.img1.offsetTop l=document.all.img1.offsetLeft while a.tagName<>"BODY" set a = a.offsetParent t=t+a.offsetTop l=l+a.offsetLeft wend msgbox "top="&t&chr(13)&"left="&l,64,"得到控件的位置" end function --></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="http://www.mamicode.com/123" onfocus="cc()"> 15. 判断上一页的来源 ASP: request.servervariables("HTTP_REFERER") javascript: document.referrer 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="http://www.mamicode.com/Minimize"></object> <object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> <param name="Command" value="http://www.mamicode.com/Maximize"></object> <OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"> <PARAM NAME="Command" VALUE="http://www.mamicode.com/Close"></OBJECT> <input type=button value=http://www.mamicode.com/最小化 onclick=hh1.Click()> "pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> <META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT"> 或者<META HTTP-EQUIV="expires" CONTENT="0"> ASP网页 Response.Expires = -1 Response.ExpiresAbsolute = Now() - 1 Response.cachecontrol = "no-cache" PHP网页 header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); header("Cache-Control: no-cache, must-revalidate"); header("Pragma: no-cache"); 19. 检查一段字符串是否全由数字组成 <script language="javascript"><!-- function checkNum(str){return str.match(/\D/)==null} alert(checkNum("1232142141")) alert(checkNum("123214214a1")) // --></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="http://www.mamicode.com/style" checked>Style <INPUT name="radio1" type="radio" value="http://www.mamicode.com/barcode">Barcode <INPUT type="button" value="http://www.mamicode.com/check" onclick="checkme()"> </BODY></HTML> 25.获得本页url的request.servervariables("")集合 Response.Write "<TABLE border=1><!-- Table Header --><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]="www.njcatv.net" autourl[2]="javacool.3322.net" autourl[3]="www.sina.com.cn" autourl[4]="www.nuaa.edu.cn" autourl[5]="www.cctv.com" function butt(){ document.write("<form name=autof>") for(var i=1;i<autourl.length;i++) document.write("<input type=text name=txt"+i+" size=10 value=http://www.mamicode.com/测试中……> =》") } butt() function auto(url){ document.forms[0]["url"+b].value=http://www.mamicode.com/url "txt"+b].value="http://www.mamicode.com/链接超时"} else {document.forms[0]["txt"+b].value="http://www.mamicode.com/时间"+tim/10+"秒"} b++ } function run(){for(var i=1;i<autourl.length;i++)document.write("<img src=http://"+autourl[i]+"/"+Math.random()+" width=1 height=1 one rror=auto(‘http://";+autourl[i]+"‘)>")} run()</script> 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