javascript开头代码，html开头基础代码
大家好，今天小编来为大家解答javascript开头代码这个问题，html开头基础代码很多人还不知道，现在让我们一起来看看吧！
js以开头以结尾字符串怎么写
在JavaScript中，如果你想检查一个字符串是否以特定字符或模式开始，可以使用正则表达式。例如，要检查字符串是否以“#”开头，你可能会使用以下正则表达式：
var pat=/^#.*:/;这个正则表达式的含义是：
^#表示字符串必须以“#”开始
.*表示任意数量的任意字符
:/表示必须以冒号“:”结束
使用test方法测试字符串“#ddd:”：
pat.test("#ddd:")返回true，因为字符串满足正则表达式条件，即以“#”开始，并以冒号结束。
下面是一个完整的示例代码，展示了如何使用这个正则表达式来检查字符串：
javascript
var pat=/^#.*:/;
console.log(pat.test("#ddd:"));//输出 true
console.log(pat.test("ddd:"));//输出 false，因为没有“#”开头
console.log(pat.test("#ddd:abc"));//输出 true，因为满足条件
这个示例展示了如何使用正则表达式来检查字符串是否符合特定模式。
正则表达式非常强大，可以用来匹配复杂的字符串模式。例如，如果你想要检查字符串是否以“#”开头但不包含特定字符，你可以修改正则表达式。这在处理用户输入时非常有用，确保输入格式正确。
例如，如果你想检查字符串是否以“#”开头但不包含空格，可以使用以下正则表达式：
var pat=/^#[^\s]*:/;这个正则表达式的含义是：
^#表示字符串必须以“#”开始
[^\s]*表示任意数量的非空格字符
:/表示必须以冒号结束
这样可以确保字符串以“#”开头，并且不包含空格。
通过这种方式，你可以灵活地使用正则表达式来验证和处理字符串。
<大虾进> javascript常用脚本代码有那些呀
适合阅读范围：对JavaScript一无所知～离精通只差一步之遥的人
基础知识：HTML
JavaScript就这么回事1：基础知识
1创建脚本块
1:<script language=”JavaScript”>
2: JavaScript code goes here
3:</script>
2隐藏脚本代码
1:<script language=”JavaScript”>
2:<!--
3: document.write(“Hello”);
4://-->
5:</script>
在不支持JavaScript的浏览器中将不执行相关代码
3浏览器不支持的时候显示
1:<noscript>
2: Hello to the non-JavaScript browser.
3:</noscript>
4链接外部脚本文件
1:<script language=”JavaScript” src="/”filename.js"”></script>
5注释脚本
1:// This is a comment
2: document.write(“Hello”);// This is a comment
3:/*
4: All of this
5: is a comment
6:*/
6输出到浏览器
1: document.write(“<strong>Hello</strong>”);
7定义变量
1: var myVariable=“some value”;
8字符串相加
1: var myString=“String1”+“String2”;
9字符串搜索
1:<script language=”JavaScript”>
2:<!--
3: var myVariable=“Hello there”;
4: var therePlace= myVariable.search(“there”);
5: document.write(therePlace);
6://-->
7:</script>
10字符串替换
1: thisVar.replace(“Monday”,”Friday”);
11格式化字串
1:<script language=”JavaScript”>
2:<!--
3: var myVariable=“Hello there”;
4: document.write(myVariable.big()+“<br/>”);
5: document.write(myVariable.blink()+“<br/>”);
6: document.write(myVariable.bold()+“<br/>”);
7: document.write(myVariable.fixed()+“<br/>”);
8: document.write(myVariable.fontcolor(“red”)+“<br/>”);
9: document.write(myVariable.fontsize(“18pt”)+“<br/>”);
10: document.write(myVariable.italics()+“<br/>”);
11: document.write(myVariable.small()+“<br/>”);
12: document.write(myVariable.strike()+“<br/>”);
13: document.write(myVariable.sub()+“<br/>”);
14: document.write(myVariable.sup()+“<br/>”);
15: document.write(myVariable.toLowerCase()+“<br/>”);
16: document.write(myVariable.toUpperCase()+“<br/>”);
17:
18: var firstString=“My String”;
19: var finalString= firstString.bold().toLowerCase().fontcolor(“red”);
20://-->
21:</script>
12创建数组
1:<script language=”JavaScript”>
2:<!--
3: var myArray= new Array(5);
4: myArray[0]=“First Entry”;
5: myArray[1]=“Second Entry”;
6: myArray[2]=“Third Entry”;
7: myArray[3]=“Fourth Entry”;
8: myArray[4]=“Fifth Entry”;
9: var anotherArray= new Array(“First Entry”,”Second Entry”,”Third Entry”,”Fourth Entry”,”Fifth Entry”);
10://-->
11:</script>
13数组排序
1:<script language=”JavaScript”>
2:<!--
3: var myArray= new Array(5);
4: myArray[0]=“z”;
5: myArray[1]=“c”;
6: myArray[2]=“d”;
7: myArray[3]=“a”;
8: myArray[4]=“q”;
9: document.write(myArray.sort());
10://-->
11:</script>
14分割字符串
1:<script language=”JavaScript”>
2:<!--
3: var myVariable=“a,b,c,d”;
4: var stringArray= myVariable.split(“,”);
5: document.write(stringArray[0]);
6: document.write(stringArray[1]);
7: document.write(stringArray[2]);
8: document.write(stringArray[3]);
9://-->
10:</script>
15弹出警告信息
1:<script language=”JavaScript”>
2:<!--
3: window.alert(“Hello”);
4://-->
5:</script>
16弹出确认框
1:<script language=”JavaScript”>
2:<!--
3: var result= window.confirm(“Click OK to continue”);
4://-->
5:</script>
17定义函数
1:<script language=”JavaScript”>
2:<!--
3: function multiple(number1,number2){
4: var result= number1* number2;
5: return result;
6:}
7://-->
8:</script>
18调用JS函数
1:<a href=”#” onClick=”functionName()”>Link text</a>
2:<a rel="external nofollow" href="/”javascript:functionName"()”>Link text</a>
19在页面加载完成后执行函数
1:<body onLoad=”functionName();”>
2: Body of the page
3:</body>
20条件判断
1:<script>
2:<!--
3: var userChoice= window.confirm(“Choose OK or Cancel”);
4: var result=(userChoice== true)?“OK”:“Cancel”;
5: document.write(result);
6://-->
7:</script>
21指定次数循环
1:<script>
2:<!--
3: var myArray= new Array(3);
4: myArray[0]=“Item 0”;
5: myArray[1]=“Item 1”;
6: myArray[2]=“Item 2”;
7: for(i= 0; i< myArray.length; i++){
8: document.write(myArray[i]+“<br/>”);
9:}
10://-->
11:</script>
22设定将来执行
1:<script>
2:<!--
3: function hello(){
4: window.alert(“Hello”);
5:}
6: window.setTimeout(“hello()”,5000);
7://-->
8:</script>
23定时执行函数
1:<script>
2:<!--
3: function hello(){
4: window.alert(“Hello”);
5: window.setTimeout(“hello()”,5000);
6:}
7: window.setTimeout(“hello()”,5000);
8://-->
9:</script>
24取消定时执行
1:<script>
2:<!--
3: function hello(){
4: window.alert(“Hello”);
5:}
6: var myTimeout= window.setTimeout(“hello()”,5000);
7: window.clearTimeout(myTimeout);
8://-->
9:</script>
25在页面卸载时候执行函数
1:<body onUnload=”functionName();”>
2: Body of the page
3:</body>
JavaScript就这么回事2：浏览器输出
26访问document对象
1:<script language=”JavaScript”>
2: var myURL= document.URL;
3: window.alert(myURL);
4:</script>
27动态输出HTML
1:<script language=”JavaScript”>
2: document.write(“<p>Here’s some information about this document:</p>”);
3: document.write(“<ul>”);
4: document.write(“<li>Referring Document:“+ document.referrer+“</li>”);
5: document.write(“<li>Domain:“+ document.domain+“</li>”);
6: document.write(“<li>URL:“+ document.URL+“</li>”);
7: document.write(“</ul>”);
8:</script>
28输出换行
1: document.writeln(“<strong>a</strong>”);
2: document.writeln(“b”);
29输出日期
1:<script language=”JavaScript”>
2: var thisDate= new Date();
3: document.write(thisDate.toString());
4:</script>
30指定日期的时区
1:<script language=”JavaScript”>
2: var myOffset=-2;
3: var currentDate= new Date();
4: var userOffset= currentDate.getTimezoneOffset()/60;
5: var timeZoneDifference= userOffset- myOffset;
6: currentDate.setHours(currentDate.getHours()+ timeZoneDifference);
7: document.write(“The time and date in Central Europe is:“+ currentDate.toLocaleString());
8:</script>
31设置日期输出格式
1:<script language=”JavaScript”>
2: var thisDate= new Date();
3: var thisTimeString= thisDate.getHours()+“:”+ thisDate.getMinutes();
4: var thisDateString= thisDate.getFullYear()+“/”+ thisDate.getMonth()+“/”+ thisDate.getDate();
5: document.write(thisTimeString+“ on“+ thisDateString);
6:</script>
32读取URL参数
1:<script language=”JavaScript”>
2: var urlParts= document.URL.split(“?”);
3: var parameterParts= urlParts[1].split(“&”);
4: for(i= 0; i< parameterParts.length; i++){
5: var pairParts= parameterParts[i].split(“=”);
6: var pairName= pairParts[0];
7: var pairValue= pairParts[1];
8: document.write(pairName+“：“+pairValue);
9:}
10:</script>
你还以为HTML是无状态的么？
33打开一个新的document对象
1:<script language=”JavaScript”>
2: function newDocument(){
3: document.open();
4: document.write(“<p>This is a New Document.</p>”);
5: document.close();
6:}
7:</script>
34页面跳转
1:<script language=”JavaScript”>
2: window.location=“”;
3:</script>
35添加网页加载进度窗口
1:<html>
2:<head>
3:<script language='javaScript'>
4: var placeHolder= window.open('holder.html','placeholder','width=200,height=200');
5:</script>
6:<title>The Main Page</title>
7:</head>
8:<body onLoad='placeHolder.close()'>
9:<p>This is the main page</p>
10:</body>
11:</html>
36读取图像属性
1:<img src="/”image1.jpg"” name=”myImage”>
2:<a href=”#” onClick=”window.alert(document.myImage.width)”>Width</a>
3:
37动态加载图像
1:<script language=”JavaScript”>
2: myImage= new Image;
3: myImage.src=“Tellers1.jpg”;
4:</script>
38简单的图像替换
1:<script language=”JavaScript”>
2: rollImage= new Image;
3: rollImage.src=“rollImage1.jpg”;
4: defaultImage= new Image;
5: defaultImage.src=“image1.jpg”;
6:</script>
7:<a rel="external nofollow" href="/”myUrl"” onMouseOver=”document.myImage.src= rollImage.src;”
8: onMouseOut=”document.myImage.src= defaultImage.src;”>
9:<img src="/”image1.jpg"” name=”myImage” width=100 height=100 border=0>
39随机显示图像
1:<script language=”JavaScript”>
2: var imageList= new Array;
3: imageList[0]=“image1.jpg”;
4: imageList[1]=“image2.jpg”;
5: imageList[2]=“image3.jpg”;
6: imageList[3]=“image4.jpg”;
7: var imageChoice= Math.floor(Math.random()* imageList.length);
8: document.write(‘<img src=”’+ imageList[imageChoice]+‘“>’);
9:</script>
40函数实现的图像替换
1:<script language=”JavaScript”>
2: var source= 0;
3: var replacement= 1;
4: function createRollOver(originalImage,replacementImage){
5: var imageArray= new Array;
6: imageArray[source]= new Image;
7: imageArray[source].src= originalImage;
8: imageArray[replacement]= new Image;
9: imageArray[replacement].src= replacementImage;
10: return imageArray;
11:}
12: var rollImage1= createRollOver(“image1.jpg”,”rollImage1.jpg”);
13:</script>
14:<a href=”#” onMouseOver=”document.myImage1.src= rollImage1[replacement].src;”
15: onMouseOut=”document.myImage1.src= rollImage1[source].src;”>
16:<img src="/”image1.jpg"” width=100 name=”myImage1” border=0>
17:</a>
41创建幻灯片
1:<script language=”JavaScript”>
2: var imageList= new Array;
3: imageList[0]= new Image;
4: imageList[0].src=“image1.jpg”;
5: imageList[1]= new Image;
6: imageList[1].src=“image2.jpg”;
7: imageList[2]= new Image;
8: imageList[2].src=“image3.jpg”;
9: imageList[3]= new Image;
10: imageList[3].src=“image4.jpg”;
11: function slideShow(imageNumber){
12: document.slideShow.src= imageList[imageNumber].src;
13: imageNumber+= 1;
14: if(imageNumber< imageList.length){
15: window.setTimeout(“slideShow(“+ imageNumber+“)”,3000);
16:}
17:}
18:</script>
19:</head>
20:<body onLoad=”slideShow(0)”>
21:<img src="/”image1.jpg"” width=100 name=”slideShow”>
42随机广告图片
1:<script language=”JavaScript”>
2: var imageList= new Array;
3: imageList[0]=“image1.jpg”;
4: imageList[1]=“image2.jpg”;
5: imageList[2]=“image3.jpg”;
6: imageList[3]=“image4.jpg”;
7: var urlList= new Array;
8: urlList[0]=“”;
9: urlList[1]=“”;
10: urlList[2]=“”;
11: urlList[3]=“”;
12: var imageChoice= Math.floor(Math.random()* imageList.length);
13: document.write(‘<a href=”’+ urlList[imageChoice]+‘“><img src=”’+ imageList[imageChoice]+‘“></a>’);
14:</script>
JavaScript就这么回事4：表单
还是先继续写完JS就这么回事系列吧～
43表单构成
1:<form method=”post” action=”target.html” name=”thisForm”>
2:<input type=”text” name=”myText”>
3:<select name=”mySelect”>
4:<option value=”1”>First Choice</option>
5:<option value=”2”>Second Choice</option>
6:</select>
7:<br/>
8:<input type=”submit” value=”Submit Me”>
9:</form>
44访问表单中的文本框内容
1:<form name=”myForm”>
2:<input type=”text” name=”myText”>
3:</form>
4:<a href='#' onClick='window.alert(document.myForm.myText.value);'>Check Text Field</a>
45动态复制文本框内容
1:<form name=”myForm”>
2: Enter some Text:<input type=”text” name=”myText”><br/>
3: Copy Text:<input type=”text” name=”copyText”>
4:</form>
5:<a href=”#” onClick=”document.myForm.copyText.value=
6: document.myForm.myText.value;”>Copy Text Field</a>
46侦测文本框的变化
1:<form name=”myForm”>
2: Enter some Text:<input type=”text” name=”myText” onChange=”alert(this.value);”>
3:</form>
47访问选中的Select
1:<form name=”myForm”>
2:<select name=”mySelect”>
3:<option value=”First Choice”>1</option>
4:<option value=”Second Choice”>2</option>
5:<option value=”Third Choice”>3</option>
6:</select>
7:</form>
8:<a href='#' onClick='alert(document.myForm.mySelect.value);'>Check Selection List</a>
48动态增加Select项
1:<form name=”myForm”>
2:<select name=”mySelect”>
3:<option value=”First Choice”>1</option>
4:<option value=”Second Choice”>2</option>
5:</select>
6:</form>
7:<script language=”JavaScript”>
8: document.myForm.mySelect.length++;
9: document.myForm.mySelect.options[document.myForm.mySelect.length- 1].text=“3”;
10: document.myForm.mySelect.options[document.myForm.mySelect.length- 1].value=“Third Choice”;
11:</script>
49验证表单字段
1:<script language=”JavaScript”>
2: function checkField(field){
3: if(field.value==“”){
4: window.alert(“You must enter a value in the field”);
5: field.focus();
6:}
7:}
8:</script>
9:<form name=”myForm” action=”target.html”>
10: Text Field:<input type=”text” name=”myField”onBlur=”checkField(this)”>
11:<br/><input type=”submit”>
12:</form>
50验证Select项
1: function checkList(selection){
2: if(selection.length== 0){
3: window.alert(“You must make a selection from the list.”);
4: return false;
5:}
6: return true;
7:}
51动态改变表单的action
1:<form name=”myForm” action=”login.html”>
2: Username:<input type=”text” name=”username”><br/>
3: Password:<input type=”password” name=”password”><br/>
4:<input type=”button” value=”Login” onClick=”this.form.submit();”>
5:<input type=”button” value=”Register” onClick=”this.form.action=‘register.html’; this.form.submit();”>
6:<input type=”button” value=”Retrieve Password” onClick=”this.form.action=‘password.html’; this.form.submit();”>
7:</form>
52使用图像按钮
1:<form name=”myForm” action=”login.html”>
2: Username:<input type=”text” name=”username”><br/>
3: Password:<input type=”password”name=”password”><br/>
4:<input type=”image” src="/”login.gif"” value=”Login”>
5:</form>
6:
53表单数据的加密
1:<SCRIPT LANGUAGE='JavaScript'>
2:<!--
3: function encrypt(item){
4: var newItem='';
5: for(i=0; i< item.length; i++){
6: newItem+= item.charCodeAt(i)+'.';
7:}
8: return newItem;
9:}
10: function encryptForm(myForm){
11: for(i=0; i< myForm.elements.length; i++){
12: myForm.elements[i].value= encrypt(myForm.elements[i].value);
13:}
14:}
15:
16://-->
17:</SCRIPT>
18:<form name='myForm' onSubmit='encryptForm(this); window.alert(this.myField.value);'>
19: Enter Some Text:<input type=text name=myField><input type=submit>
20:</form>
JavaScript就这么回事5：窗口和框架
54改变浏览器状态栏文字提示
1:<script language=”JavaScript”>
2: window.status=“A new status message”;
3:</script>
55弹出确认提示框
1:<script language=”JavaScript”>
2: var userChoice= window.confirm(“Click OK or Cancel”);
3: if(userChoice){
4: document.write(“You chose OK”);
5:} else{
6: document.write(“You chose Cancel”);
7:}
8:</script>
56提示输入
1:<script language=”JavaScript”>
2: var userName= window.prompt(“Please Enter Your Name”,”Enter Your Name Here”);
3: document.write(“Your Name is“+ userName);
4:</script>
57打开一个新窗口
1://打开一个名称为myNewWindow的浏览器新窗口
2:<script language=”JavaScript”>
3: window.open(“”,”myNewWindow”);
4:</script>
58设置新窗口的大小
1:<script language=”JavaScript”>
2: window.open(“”,”myNewWindow”,'height=300,width=300');
3:</script>
59设置新窗口的位置
1:<script language=”JavaScript”>
2: window.open(“”,”myNewWindow”,'height=300,width=300,left=200,screenX=200,top=100,screenY=100');
3:</script>
60是否显示工具栏和滚动栏
1:<script language=”JavaScript”>
2: window.open(“http:
61是否可以缩放新窗口的大小
1:<script language=”JavaScript”>
2: window.open(';);</script>
62加载一个新的文档到当前窗口
1:<a href='#' onClick='document.location='125a.html';'>Open New Document</a>
63设置页面的滚动位置
1:<script language=”JavaScript”>
2: if(document.all){//如果是IE浏览器则使用scrollTop属性
3: document.body.scrollTop= 200;
4:} else{//如果是NetScape浏览器则使用pageYOffset属性
5: window.pageYOffset= 200;
6:}</script>
64在IE中打开全屏窗口
1:<a href='#' onClick=”window.open(';);”>Open a full-screen window</a>
65新窗口和父窗口的操作
1:<script language=”JavaScript”>
2://定义新窗口
3: var newWindow= window.open(“128a.html”,”newWindow”);
4: newWindow.close();//在父窗口中关闭打开的新窗口
5:</script>
6:在新窗口中关闭父窗口
7: window.opener.close()
66往新窗口中写内容
1:<script language=”JavaScript”>
2: var newWindow= window.open(“”,”newWindow”);
3: newWindow.document.open();
4: newWindow.document.write(“This is a new window”);
5: newWIndow.document.close();
6:</script>
67加载页面到框架页面
1:<frameset cols=”50%,*”>
2:<frame name=”frame1” src="/”135a.html"”>
3:<frame name=”frame2” src="/”about:blank"”>
4:</frameset>
5:在frame1中加载frame2中的页面
6: parent.frame2.document.location=“135b.html”;
68在框架页面之间共享脚本
如果在frame1中html文件中有个脚本
1: function doAlert(){
2: window.alert(“Frame 1 is loaded”);
3:}
那么在frame2中可以如此调用该方法
1:<body onLoad=”parent.frame1.doAlert();”>
2: This is frame 2.
3:</body>
69数据公用
可以在框架页面定义数据项，使得该数据可以被多个框架中的页面公用
1:<script language=”JavaScript”>
2: var persistentVariable=“This is a persistent value”;
3:</script>
4:<frameset cols=”50%,*”>
5:<frame name=”frame1” src="/”138a.html"”>
6:<frame name=”frame2” src="/”138b.html"”>
7:</frameset>
这样在frame1和frame2中都可以使用变量persistentVariable
70框架代码库
根据以上的一些思路，我们可以使用一个隐藏的框架页面来作为整个框架集的代码库
1:<frameset cols=”0,50%,*”>
2:<frame name=”codeFrame” src="/”140code.html"”>
3:<frame name=”frame1” src="/”140a.html"”>
4:<frame name=”frame2” src="/”140b.html"”>
5:</frameset>
javascript写的注册页面代码
只是写了昵称密码确认密码电子邮件地址
其余的自己写一下吧
就是这个格式
自己完成吧！
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Untitled Document</title>
<script language="javascript">
function checkname(){
var div= document.getElementById("div1");
div.innerHTML="";
var name1= document.form1.text1.value;
if(name1==""){
div.innerHTML="姓名不能为空！";
document.form1.text1.focus();
return false;
}
if(name1.length< 4|| name1.length> 16){
div.innerHTML="姓名输入的长度4-16个字符！";
document.form1.text1.select();
return false;
}
var charname1= name1.toLowerCase();
for(var i= 0; i< name1.length; i++){
var charname= charname1.charAt(i);
if(!(charname>= 0&& charname<= 9)&&(!(charname>='a'&& charname<='z'))&&(charname!='_')){
div.innerHTML="姓名包含非法字母，只能包含字母，数字，和下划线";
document.form1.text1.select();
return false;
}
}
return true;
}
function checkpassword(){
var div= document.getElementById("div2");
div.innerHTML="";
var password= document.form1.text2.value;
if(password==""){
div.innerHTML="密码不位空！";
document.form1.text2.focus();
return false;
}
if(password.length< 4|| password.length> 12){
div.innerHTML="密码长度4-12位";
document.form1.text2.select();
return false;
}
return true;
}
function checkrepassword(){
var div= document.getElementById("div3");
div.innerHTML="";
var password= document.form1.text2.value;
var repass= document.form1.text3.value;
if(repass==""){
div.innerHTML="密码不位空！";
document.form1.text3.focus();
return false;
}
if(password!= repass){
div.innerHTML="输入密码和确认密码长度不一致";
document.form1.text3.select();
return false;
}
return true;
}
function checkEmail(){
var div= document.getElementById("div4");
div.innerHTML="";
var email= document.form1.text5.value;
var sw= email.indexOf("@", 0);
var sw1= email.indexOf(".", 0);
var tt= sw1- sw;
if(email.length== 0){
div.innerHTML="电子邮件不能位空";
document.form1.text5.focus();
return false;
}
if(email.indexOf("@", 0)==-1){
div.innerHTML="电子邮件格式不正确，必须包含@符号！";
document.form1.text5.select();
return false;
}
if(email.indexOf(".", 0)==-1){
div.innerHTML="电子邮件格式不正确，必须包含.符号！";
document.form1.text5.select();
return false;
}
if(tt== 1){
div.innerHTML="邮件格式不对。@和.不可以挨着！";
document.form1.text5.select();
return false;
}
if(sw> sw1){
div.innerHTML="电子邮件格式不正确，@符号必须在.之前";
document.form1.text5.select();
return false;
}
else{
return true;
}
return ture;
}
function check(){
if(checkname()&& checkpassword()&& checkrepassword()&& checkEmail()){
return true;
}
else{
return false;
}
}
</script>
</head>
<body>
<form name="form1" method="post" action="2.html" onsubmit="return check()">
<table>
<tr>
<td>
用户名：
</td>
<td>
<input id="text1" type="text" name="text1" onblur="check()">
<div id="div1" style="display:inline">
</div>
</td>
</tr>
<tr>
<td>
密码：
</td>
<td>
<input id="text2" type="password" name="text2" onblur="check()">
<div id="div2" style="display:inline">
</div>
</td>
</tr>
<tr>
<td>
确认密码：
</td>
<td>
<input id="text3" type="password" name="text3" onblur="check()">
<div id="div3" style="display:inline">
</div>
</td>
</tr>
<tr>
<td>
电子邮件地址：
</td>
<td>
<input id="text4" type="text" name="text4" onblur="check()">
<div id="div4" style="display:inline">
</div>
</td>
</tr>
<tr align="center">
<td align="center">
<input type="submit" value="提交" name="tect6"><input type="reset" value="重置" name="text7">
</td>
</tr>
</table>
</form>
</body>
</html>
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