各种网页功能代码 NO.2

技术2022-05-20 54

101.饼图<style>v/:* { behavior: url(#default#VML) }o/:* { behavior: url(#default#VML) }.shape { behavior: url(#default#VML) }</style><script language="javascript">function show(pie){pie.strokecolor=pie.fillcolor;pie.strokeweight=10;div1.innerHTML="<font size=2 color=red> " + pie.id +"</font> <font size=2>" + pie.title + "</font>";}function hide(pie) {pie.strokecolor="white";pie.strokeweight=1;div1.innerHTML="";}</script></head><body><v:group style='width: 5cm; height: 5cm' coordorigin='0,0' coordsize='250,250'><v:shape id='asp技术' style='width:10;height:10;top:10;left:0' title='得票数:6 比例:40.00%'οnmοuseοver='javascript:show(this);' οnmοuseοut='javascript:hide(this);' href='http://www.cnADO.com'CoordSize='10,10' strokecolor='white' fillcolor='#ffff33'><v:path v='m 300,200 ae300,200,200,150,0,9437184 xe'/></v:shape><v:shape id='php' style='width:10;height:10;top:10;left:0' title='得票数:1 比例:6.67%'οnmοuseοver='javascript:show(this);' οnmοuseοut='javascript:hide(this);' href='http://www.cnADO.com' CoordSize='10,10' strokecolor='white' fillcolor='#ff9933'><v:path v='m 300,200 ae300,200,200,150,9437184,1572864 xe'/></v:shape><v:shape id='jsp' style='width:10;height:10;top:10;left:0' title='得票数:2 比例:13.33%' οnmοuseοver='javascript:show(this);' οnmοuseοut='javascript:hide(this);' href='http://www.cnADO.com'CoordSize='10,10' strokecolor='white' fillcolor='#3399ff'><v:path v='m 300,200 ae300,200,200,150,11010048,3145728 xe'/></v:shape><v:shape id='c#写的.netWEB程序' style='width:10;height:10;top:10;left:0' title='得票数:3 比例:20.00%'οnmοuseοver='javascript:show(this);' οnmοuseοut='javascript:hide(this);' href='http://www.cnADO.com'CoordSize='10,10' strokecolor='white' fillcolor='#99ff33'><v:path v='m 300,200 ae300,200,200,150,14155776,4718592 xe'/></v:shape><v:shape id='vb.net写的.netWEB程序' style='width:10;height:10;top:10;left:0' title='得票数:2 比例:13.33%'οnmοuseοver='javascript:show(this);' οnmοuseοut='javascript:hide(this);' href='http://www.cnADO.com'CoordSize='10,10' strokecolor='white' fillcolor='#ff6600'><v:path v='m 300,200 ae300,200,200,150,18874368,3145728 xe'/></v:shape> <v:shape id='xml技术' style='width:10;height:10;top:10;left:0' title='得票数:1 比例:6.67%'οnmοuseοver='javascript:show(this);' οnmοuseοut='javascript:hide(this);' href='http://www.cnADO.com'CoordSize='10,10' strokecolor='white' fillcolor='#ff99ff'><v:path v='m 300,200 ae300,200,200,150,22020096,1572864 xe'/></v:shape></v:group><v:group style='width: 6cm; height: 6cm' coordorigin='0,0' coordsize='250,250'><v:rect style='height:10;width:15;top:0;left:10' fillcolor='#ffff33'/><v:rect style='height:28;width:100;top:0;left:30' stroked='false'><v:textboxstyle='fontsize:2'>asp技术</v:textbox/></v:rect><v:rect style='height:10;width:15;top:30;left:10' fillcolor='#ff9933'/><v:rect style='height:28;width:100;top:30;left:30' stroked='false'><v:textboxstyle='fontsize:2'>php</v:textbox/></v:rect><v:rect style='height:10;width:15;top:60;left:10' fillcolor='#3399ff'/> <v:rect style='height:28;width:100;top:60;left:30' stroked='false'><v:textboxstyle='fontsize:2'>jsp</v:textbox/></v:rect><v:rect style='height:10;width:15;top:90;left:10' fillcolor='#99ff33'/><v:rect style='height:28;width:100;top:90;left:30' stroked='false'><v:textboxstyle='fontsize:2'>c#写的.netWEB程序</v:textbox/></v:rect><v:rect style='height:10;width:15;top:120;left:10' fillcolor='#ff6600'/><v:rect style='height:28;width:100;top:120;left:30' stroked='false'><v:textbox style='fontsize:2'>vb.net写的.netWEB程序</v:textbox/></v:rect><v:rect style='height:10;width:15;top:150;left:10' fillcolor='#ff99ff'/><v:rect style='height:28;width:100;top:150;left:30' stroked='false'><v:textbox style='fontsize:2'>xml技术</v:textbox/></v:rect></v:group><div style="position: absolute; left: 10; top: 10; width: 760; height:16"> <table border="1" cellpadding="2" cellspacing="2" cellpadding="0" cellspacing="0"style="border-collapse: collapse" bordercolor="#CCCCCC" width="100%" ID="Table1"><tr><td width="100%" id=div1>　</td></tr></table></div>//102.是一个特殊的容器，想装个网页都行<button><iframe src="//button'>http://www.google.com/"></iframe></button>//button103.外部的html代码event.srcElement.outerHTML//104.标识当前的IE事件的触发器event.srcElement和event.keyCode//105.事件类型event.type//106.动态改变类型<style>.Overnone { border-width:0;background-color:darkblue;cursor:default;color:gold;width:115}.Outnone {border-width:0;background-color:white;cursor:default;width:115} </style><input class=Outnone οnmοuseοver=this.className='Overnone' >//107.页面翻转<html dir=rtl></html>//108.滚屏parent.scroll(x,y);//<body οnlοad="s=0" onDblClick="s=setInterval('scrollBy(0, 1)',10)" onClick="clearInterval(s)">//109.改变状态栏self.status ="";//110.改变窗口大小window.resizeTo(200,300);//111.改变鼠标样式styleBODY{CURSOR: url('mouse.ani');SCROLLBAR-BASE-COLOR: #506AA8;SCROLLBAR-ARROW-COLOR: #14213F;}//112.背景透明<input type="button" value="Button" style="background-color: transparent; border: 0;">//113.鼠标为等待形状<input type=button οnclick="this.style.cursor='wait'">//114.调用父窗口的函数opener.fucntion1();//115.body的内部html代码<input type="button" οnclick="alert(code.document.body.innerHTML)" value="查看">// 116.框架中调用父窗口的函数<INPUT TYPE='button' οnclick='parent.test();' value='调用parent窗口的函数'>//117.交换节点<table width=200 height=200 border><tr><td id=c1>CELL_1</td></tr><tr><td id=c2>CELL_2</td></tr></table><br><input type="button" value="swap row" οnclick="c1.swapNode(c2)">//118.删除节点<table width=200 height=200 border><tr id=trall><td id=c1>CELL_1</td></tr><tr><td id=c2>CELL_2</td></tr></table><br><input type="button" value="swap row" οnclick="trall.removeNode(c2)">//119.添加节点addNode()//120.获得事件的父与子标签event.srcElement.children[0]和event.srcElement.parentElement // 121.集中为按钮改变颜色<style>button{benc:expression(this.onfocus = function(){this.style.backgroundColor='#E5F0FF';})}</style><button>New</button>//122.判断是左键还是右键被按下<body οnmοusedοwn=if(event.button==1)alert("左键");if(event.button==2)alert("右键")>//123.获得操作系统的名称和浏览器的名称document.write(navigator.userAgent)// 124.alt/ctrl/shift键按下event.altKey //按下alt键event.ctrlKey //按下ctrl键event.shiftKey //按下shift键125.将当前位置定位为C盘。{window.location="c:"}//126.返回输入框的类型<script>alert(event.srcElement.type);//</script>127.模拟控件的单击事件<INPUT TYPE="hidden" name="guoguo" οnclick="haha()"><SCRIPT LANGUAGE="JavaScript"></SCRIPT>// 128.取出记录集的列名java.sql.ResultSet rset = com.bsitc.util.DBAssist.getIT().executeQuery(queryStatement, conn);java.sql.ResultSetMetaData metaData = rset.getMetaData();int count = metaData.getColumnCount();String name = metaData.getColumnName(i);String value = rset.getString(i);//129.格式化数字function format_number(str,digit){if(isNaN(str)){alert("您传入的值不是数字！");return 0;}else if(Math.round(digit)!=digit){alert("您输入的小数位数不是整数！");return 0;}elsereturn Math.round(parseFloat(str)*Math.pow(10,digit))/Math.pow(10,digit);}130.回车按钮转化为tab按钮if(event.keyCode==13) event.keyCode=9; //将 131.滚动条滚动<button οnclick="text1.scrollTop=text1.scrollHeight">Scroll</button><br> <textarea id="text1" cols=50 rows=10>111111111111111</textarea>// 132.判断是什么对象if(typeof(unknown)=="function")return true;if(typeof(unknown)!="object")return false;// 133.取消文本框自动完成功能<input type="text" autocomplete="off"> //134.让下拉框自动下拉<select οnmοuseοver="javascript:this.size=this.length" οnmοuseοut="javascript:this.size=1"><option value="">1</option><option value="">2</option><option value="">3</option></select> // 135.读取XML文件var childrenobj=myselect//document.all.myselect;var oXMLDoc = new ActiveXObject('MSXML');oXMLDoc.url = "mymsg.xml"; var oRoot=oXMLDoc.root;if(oRoot.children != null){for(var i=0;i<oRoot.children.item(0).children.length;++i){oItem = oRoot.children.item(0).children.item(i);oOption = new Option(oItem.text,oItem.value);childrenobj.add(oOption);}}//mymsg.xml文件<?xml version="1.0" encoding="gb2312" ?><childrenlist><aa><child value='3301'>杭州地区</child><child value='3303'>温州地区</child></aa><aa><child value='3310'>台州地区</child><child value='3311'>丽水地区</child></aa></childrenlist>// 136.点击图片，图片停止<a href="javascript:"><img src="http://www.rdxx.com/Files/Pic/2007-9/13/IE69K1FBFH9C4GBE3A.gif" border="0"></a>//137.显示本地计算机信息var WshNetwork = new ActiveXObject("WScript.Network");alert("Domain = " + WshNetwork.UserDomain);alert("Computer Name = " + WshNetwork.ComputerName);alert("User Name = " + WshNetwork.UserName);//138.比较时间tDate = new Date(2004,01,08,14,35); //年,月，日，时，分dDate = new Date();tDate<dDate?alert("早于"):alert("晚于");//139.弹出鼠标所在处的链结地址<body οnmοuseοver="if (event.srcElement.tagName=='A')alert(event.srcElement.href)"><ahref="http://51js.com/viewthread.php?tid=13589" >dddd</a><input>//140.注意不能通过与 undefined 做比较来测试一个变量是否存在，虽然可以检查它的类型是否为“undefined”。在以下的代码范例中，假设程序员想测试是否已经声明变量 x ：// 这种方法不起作用if (x == undefined)// 作某些操作// 这个方法同样不起作用- 必须检查// 字符串 "undefined"if (typeof(x) == undefined)// 作某些操作// 这个方法有效if (typeof(x) == "undefined")// 作某些操作141.创建具有某些属性的对象var myObject = new Object();myObject.name = "James";myObject.age = "22";myObject.phone = "555 1234";//142.枚举（循环）对象的所有属性for (var a in myObject){// 显示 "The property 'name' is James"，等等。window.alert("The property '" + a + "' is " + myObject[a]);}//143.判断一个数字是否是整数var a=23.2;alert(a%1==1)//144.新建日期型变量var a = new Date(2000, 1, 1); alert(a.toLocaleDateString());145.给类定义新的方法function trim_1(){return this.replace(/(^/s*)|(/s*$)/g, "");}String.prototype.trim=trim_1;alert('cindy'.trim()); 146.定义一个将日期类型转化为字符串的方法function guoguo_date(){var tmp1,tmp2;tmp1 =this.getMonth()+1+"";if(tmp1.length<2)tmp1="0"+tmp1;tmp2 =this.getDate()+"";if(tmp2.length<2)tmp2="0"+tmp2; return this.getYear()+"-"+tmp1+"-"+tmp2;}Date.prototype.toLiteString=guoguo_date;alert(new Date().toLiteString())147. pasta 是有四个参数的构造器,定义对象。function pasta(grain, width, shape, hasEgg){// 是用什么粮食做的？this.grain = grain;// 多宽？（数值） this.width = width; // 横截面形状？（字符串）this.shape = shape; // 是否加蛋黄？（boolean）this.hasEgg = hasEgg; //定义方法this.toString=aa;}function aa(){;}//定义了对象构造器后，用 new 运算符创建对象实例。var spaghetti = new pasta("wheat", 0.2, "circle", true);var linguine = new pasta("wheat", 0.3, "oval", true);//补充定义属性，spaghetti和linguine都将自动获得新的属性pasta.prototype.foodgroup = "carbohydrates"; 148.打印出错误原因try{x = y // 产生错误。}catch(e){document.write(e.description) //打印 "'y' is undefined".}//149.生成EXCEL文件并保存var ExcelSheet; ExcelApp = new ActiveXObject("Excel.Application");ExcelSheet = new ActiveXObject("Excel.Sheet");//本代码启动创建对象的应用程序（在这种情况下，Microsoft Excel 工作表）。一旦对象被创建，就可以用定义的对象变量在代码中引用它。在下面的例子中，通过对象变量 ExcelSheet 访问新对象的属性和方法和其他 Excel 对象，包括 Application 对象和 ActiveSheet.Cells 集合。// 使 Excel 通过 Application 对象可见。ExcelSheet.Application.Visible = true;// 将一些文本放置到表格的第一格中。ExcelSheet.ActiveSheet.Cells(1,1).Value = "This is column A, row 1";// 保存表格。ExcelSheet.SaveAs("C://TEST.XLS");// 用 Application 对象用 Quit 方法关闭 Excel。ExcelSheet.Application.Quit();//150.根据标签获得一组对象var coll = document.all.tags("DIV");if (coll!=null){for (i=0; i<coll.length; i++)...}// 151.实现打印预览及打印<OBJECT classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2" height=0 id=wb name=wb width=0></OBJECT> <input type=button value=打印预览 οnclick="wb.execwb(7,1)"><input type=button onClick=document.all.wb.ExecWB(6,1) value="打印">//152.不通过form，直接通过名字引用对象<INPUT TYPE="text" NAME="gg" value=aaaaa><SCRIPT LANGUAGE="JavaScript"></SCRIPT>//153.使鼠标滚轮失效function document.onmousewheel(){return false;}// 154.创建弹出窗口<SCRIPT LANGUAGE="JScript">var oPopup = window.createPopup();var oPopupBody = oPopup.document.body;oPopupBody.innerHTML = "Display some <B>HTML</B> here.";oPopup.show(100, 100, 200, 50, document.body);</SCRIPT>//155.取得鼠标所在处的对象var obj = document.elementFromPoint(event.x,event.y);//156.获得左边的对象<INPUT TYPE="text" NAME="gg"><INPUT TYPE="text" NAME="bb" οnclick="this.previousSibling.value='guoguo'">//157.定位鼠标document.all.hint_layer.style.left = event.x+document.body.scrollLeft+10;document.all.hint_layer.style.top = event.y+document.body.scrollTop+10;//158.向下拉框指定位置添加项目var op = document.createElement("OPTION");document.all.selected_items.children(index).insertAdjacentElement("BeforeBegin",op);op.text = document.all.all_items[i].text;op.value = document.all.all_items[i].value;// 159.判断一个窗口是否已经打开，如果已经打开，则关闭之var a;if(a)a.close();elsea=window.open('','','');//160.动态创建一个标签newElem = document.createElement("DIV");newElem.id = "hint_layer";document.body.appendChild(newElem);document.all.hint_layer.innerText="guoguo";//161.标题栏document.title// 162.背景图片<body style="BACKGROUND-ATTACHMENT: fixed" background="img/bgfix.gif" ></body>//背景图片不动<STYLE TYPE="text/css"></STYLE>//背景图片居中163.设置透明效果document.form.xxx.filters.alpha.opacity=0～100//164.定义方法var dragapproved=false;document.οnmοuseup=new Function("dragapproved = false");// 165.将数字转化为人民币大写形式function convertCurrency(currencyDigits) {// Constants:var MAXIMUM_NUMBER = 99999999999.99;// Predefine the radix characters and currency symbols for output:var CN_ZERO = "零";var CN_ONE = "壹";var CN_TWO = "贰";var CN_THREE = "叁"; var CN_FOUR = "肆";var CN_FIVE = "伍";var CN_SIX = "陆";var CN_SEVEN = "柒";var CN_EIGHT = "捌";var CN_NINE = "玖";var CN_TEN = "拾";var CN_HUNDRED = "佰";var CN_THOUSAND = "仟";var CN_TEN_THOUSAND = "万";var CN_HUNDRED_MILLION = "亿";var CN_SYMBOL = "人民币";var CN_DOLLAR = "元";var CN_TEN_CENT = "角";var CN_CENT = "分";var CN_INTEGER = "整"; // Variables:var integral; // Represent integral part of digit number.var decimal; // Represent decimal part of digit number.var outputCharacters; // The output result.var parts;var digits, radices, bigRadices, decimals;var zeroCount;var i, p, d; var quotient, modulus; // Validate input string:currencyDigits = currencyDigits.toString();if (currencyDigits == "") {alert("Empty input!");return "";}if (currencyDigits.match(/[^,./d]/) != null) {alert("Invalid characters in the input string!");return "";}if ((currencyDigits).match(/^((/d{1,3}(,/d{3})*(.((/d{3},)*/d{1,3}))?)|(/d+(./d+)?))$/) == null) {alert("Illegal format of digit number!");return "";} // Normalize the format of input digits:currencyDigits = currencyDigits.replace(/,/g, ""); // Remove comma delimiters.currencyDigits = currencyDigits.replace(/^0+/, ""); // Trim zeros at the beginning.// Assert the number is not greater than the maximum number.if (Number(currencyDigits) > MAXIMUM_NUMBER) { 软件开发网 www.mscto.com alert("Too large a number to convert!");return "";} // http://www.knowsky.com/ Process the coversion from currency digits to characters:// Separate integral and decimal parts before processing coversion:parts = currencyDigits.split(".");if (parts.length > 1) {integral = parts[0];decimal = parts[1];// Cut down redundant decimal digits that are after the second.decimal = decimal.substr(0, 2);}else {integral = parts[0];decimal = "";}// Prepare the characters corresponding to the digits:digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT, CN_NINE);radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION); decimals = new Array(CN_TEN_CENT, CN_CENT);// Start processing:outputCharacters = "";// Process integral part if it is larger than 0:if (Number(integral) > 0) {zeroCount = 0;for (i = 0; i < integral.length; i++) {p = integral.length - i - 1;d = integral.substr(i, 1);quotient = p / 4;modulus = p % 4;if (d == "0") {zeroCount++;}else {if (zeroCount > 0){outputCharacters += digits[0];}zeroCount = 0;outputCharacters += digits[Number(d)] + radices[modulus];}if (modulus == 0 && zeroCount < 4) {outputCharacters += bigRadices[quotient]; }}outputCharacters += CN_DOLLAR;}// Process decimal part if there is:if (decimal != "") {for (i = 0; i < decimal.length; i++) {d = decimal.substr(i, 1);if (d != "0") {outputCharacters += digits[Number(d)] + decimals[i];}}}// Confirm and return the final output string:if (outputCharacters == "") {outputCharacters = CN_ZERO + CN_DOLLAR;}if (decimal == "") {outputCharacters += CN_INTEGER;}outputCharacters = CN_SYMBOL + outputCharacters;return outputCharacters;}// 166.xml数据岛绑定表格<html><body><xml id="abc" src="test.xml"></xml><table border='1' datasrc='#abc'><thead> <td>接收人</td><td>发送人</td><td>主题</td><td>内容</td></thead><tfoot><tr><th>表格的结束</th></tr></tfoot><tr><td><div datafld="to"></div></td><td><div datafld="from"></div></td><td><div datafld="subject"></div></td><td><div datafld="content"></div></td></tr></table></body></html>//cd_catalog.xml<?xml version="1.0" encoding="ISO-8859-1" ?><CATALOG><CD><TITLE>Empire Burlesque</TITLE><ARTIST>Bob Dylan</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>Columbia</COMPANY> <PRICE>10.90</PRICE><YEAR>1985</YEAR></CD><CD><TITLE>Hide your heart</TITLE><ARTIST>Bonnie Tyler</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>CBS Records</COMPANY><PRICE>9.90</PRICE><YEAR>1988</YEAR></CD><CD><TITLE>Greatest Hits</TITLE><ARTIST>Dolly Parton</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>RCA</COMPANY><PRICE>9.90</PRICE><YEAR>1982</YEAR></CD><CD><TITLE>Still got the blues</TITLE><ARTIST>Gary Moore</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Virgin records</COMPANY><PRICE>10.20</PRICE> <YEAR>1990</YEAR></CD></CATALOG>//167.以下组合可以正确显示汉字================================xml保存编码 xml页面指定编码ANSI gbk/GBK、gb2312Unicode unicode/UnicodeUTF-8 UTF-8================================ 168.XML操作<xml id="xmldata" src="/data/books.xml"><div id="guoguo"></div><script>var x=xmldata.recordset //取得数据岛中的记录集if(x.absoluteposition < x.recordcount) //如果当前的绝对位置在最后一条记录之前{x.movenext(); //向后移动x.moveprevious(); //向前移动x.absoluteposition=1; //移动到第一条记录x.absoluteposition=x.recordcount;//移动到最后一条记录，注意记录集x.absoluteposition是从1到记录集记录的个数的guoguo.innerText=xmldso.recordset("field_name"); //从中取出某条记录 }</script> 169.动态修改CSS的另一种方式this.runtimeStyle.cssText = "color:#990000;border:1px solid #cccccc";//170.正则表达式匹配中文字符的正则表达式： [/u4e00-/u9fa5]匹配双字节字符(包括汉字在内)：[^/x00-/xff]应用：计算字符串的长度（一个双字节字符长度计2，ASCII字符计1）String.prototype.len=function(){return this.replace([^/x00-/xff]/g,"aa").length;}匹配空行的正则表达式：/n[/s| ]*/r匹配HTML标记的正则表达式：/<(.*)>.*<///1>|<(.*) //>/匹配首尾空格的正则表达式：(^/s*)|(/s*$)应用：javascript中没有像vbscript那样的trim函数，我们就可以利用这个表达式来实现，如下：String.prototype.trim = function(){return this.replace(/(^/s*)|(/s*$)/g, "");}利用正则表达式分解和转换IP地址：下面是利用正则表达式匹配IP地址，并将IP地址转换成对应数值的Javascript程序：function IP2V(ip){re=/(/d+)/.(/d+)/.(/d+)/.(/d+)/g //匹配IP地址的正则表达式if(re.test(ip)){return RegExp.$1*Math.pow(255,3))+RegExp.$2*Math.pow(255,2))+RegExp.$3*255+RegExp.$4*1}else{throw new Error("Not a valid IP address!")}}不过上面的程序如果不用正则表达式，而直接用split函数来分解可能更简单，程序如下：var ip="10.100.20.168"ip=ip.split(".")alert("IP值是："+(ip[0]*255*255*255+ip[1]*255*255+ip[2]*255+ip[3]*1))匹配Email地址的正则表达式：/w+([-+.]/w+)*@/w+([-.]/w+)*/./w+([-.]/w+)*匹配网址URL的正则表达式：http://([/w-]+/.)+[/w-]+(/[/w- ./?%&=]*)?//利用正则表达式去除字串中重复的字符的算法程序：var s="abacabefgeeii"var s1=s.replace(/(.).*/1/g,"$1")var re=new RegExp("["+s1+"]","g")var s2=s.replace(re,"")alert(s1+s2) //结果为：abcefgi 思路是使用后向引用取出包括重复的字符，再以重复的字符建立第二个表达式，取到不重复的字符，两者串连。这个方法对于字符顺序有要求的字符串可能不适用。//得用正则表达式从URL地址中提取文件名的javascript程序，如下结果为page1s="http://www.9499.net/page1.htm"s=s.replace(/(.*//){0,}([^/.]+).*/ig,"$2")alert(s)/利用正则表达式限制网页表单里的文本框输入内容：用正则表达式限制只能输入中文：οnkeyup="value=value.replace(/[^/u4E00-/u9FA5]/g,'')"onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^/u4E00-/u9FA5]/g,''))"用正则表达式限制只能输入全角字符： οnkeyup="value=value.replace(/[^/uFF00-/uFFFF]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^/uFF00-/uFFFF]/g,''))"用正则表达式限制只能输入数字：οnkeyup="value=value.replace(/[^/d]/g,'') 软件开发网 www.mscto.com "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^/d]/g,''))"用正则表达式限制只能输入数字和英文：οnkeyup="value=value.replace(/[/W]/g,'')"onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^/d]/g,''))" 171.设置和使用cookie<HTML><BODY>设置与读取 cookies...<BR>写入cookie的值<input type=text name=gg><INPUT TYPE = BUTTON Value = "设置cookie" onClick = "Set()"><INPUT TYPE = BUTTON Value = "读取cookie" onClick = "Get()"><BR><INPUT TYPE = TEXT NAME = Textbox></BODY><SCRIPT LANGUAGE="JavaScript">function Set(){var Then = new Date()Then.setTime(Then.getTime() + 60*1000 ) //60秒document.cookie = "Cookie1="+gg.value+";expires="+ Then.toGMTString()} function Get(){var cookieString = new String(document.cookie)var cookieHeader = "Cookie1="var beginPosition = cookieString.indexOf(cookieHeader)if (beginPosition != -1){document.all.Textbox.value = cookieString.substring(beginPosition + cookieHeader.length)}elsedocument.all.Textbox.value = "Cookie 未找到!"}</SCRIPT></HTML>// 172.取月的最后一天function getLastDay(year,month){//取年var new_year = year;//取到下一个月的第一天,注意这里传入的month是从1～12var new_month = month++;//如果当前是12月，则转至下一年if(month>12){new_month -=12;new_year++;}var new_date = new Date(new_year,new_month,1);return (new Date(new_date.getTime()-1000*60*60*24)).getDate();}// 173.判断当前的焦点是组中的哪一个for(var i=0;i<3;i++)if(event.srcElement==bb[i])break;//174.实现类package com.baosight.view.utils;import javax.servlet.jsp.tagext.TagSupport;import javax.servlet.http.HttpSession;public class Mytag extends TagSupport{public int doStartTag() throws javax.servlet.jsp.JspException{boolean canAccess = false;HttpSession session= pageContext.getSession();if (canAccess){return EVAL_BODY_INCLUDE;}else{return this.SKIP_BODY;}}}175.在web.xml中添加定义<taglib><taglib-uri>guoguo</taglib-uri><taglib-location>/WEB-INF/abc.tld</taglib-location> </taglib>176.标签库中定义abc.tld<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN""http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd"><taglib><tlibversion>1.0</tlibversion><jspversion>1.1</jspversion><shortname>hr</shortname><uri>guoguo</uri><info>Extra 3 Tag Library</info><tag><name>mytag</name><tagclass>com.baosight.view.utils.Mytag</tagclass><attribute><name>id2</name><required>true</required><rtexprvalue>true</rtexprvalue></attribute></tag> </taglib>177.在使用自定义标签的页面中加入自己定义的标签，<%@ taglib uri="guoguo" prefix="guoguo" %>//自己定义标签

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