黑马day16 jquery案例演示

案例一：

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="JavaScript"  src="../js/jquery-1.4.2.js"></script>
<title>无标题文档</title>

<style type="text/css">
<!--

BODY
{
	font-family:Courier;;
	font-size: 12px;
	margin:0px 0px 0px 0px;
	overflow-x:no;
	overflow-y:no;
	background-color: #B8D3F4;
}
td
{
	font-size:12px;
}
.default_input
{
	border:1px solid #666666;
	height:18px;
	font-size:12px;
}
.default_input2
{
	border:1px solid #666666;
	height:18px;
	font-size:12px;
}
.nowrite_input
{
	border:1px solid #849EB5;
	height:18px;
	font-size:12px;
	background-color:#EBEAE7;
	color: #9E9A9E;
}
.default_list
{
	font-size:12px;
  border:1px solid #849EB5;
}
.default_textarea
{
	font-size:12px;
	border:1px solid #849EB5;
}

.nowrite_textarea
{
	border:1px solid #849EB5;
	font-size:12px;
	background-color:#EBEAE7;
	color: #9E9A9E;
}

.wordtd5 {
	font-size: 12px;
	text-align: center;
	vertical-align:top;
	padding-top: 6px;
	padding-right: 5px;
	padding-bottom: 3px;
	padding-left: 5px;
	background-color: #b8c4f4;
}

.wordtd {
	font-size: 12px;
	text-align: left;
	vertical-align:top;
	padding-top: 6px;
	padding-right: 5px;
	padding-bottom: 3px;
	padding-left: 5px;
	background-color: #b8c4f4;
}
.wordtd_1 {
	font-size: 12px;
	vertical-align:top;
	padding-top: 6px;
	padding-right: 5px;
	padding-bottom: 3px;
	padding-left: 5px;
	background-color: #516CD6;
	color:#fff;
}
.wordtd_2{
	font-size: 12px;
	text-align: right;
	vertical-align:top;
	padding-top: 6px;
	padding-right: 5px;
	padding-bottom: 3px;
	padding-left: 5px;
	background-color: #64BDF9;
}
.wordtd_3{
	font-size: 12px;
	text-align: right;
	vertical-align:top;
	padding-top: 6px;
	padding-right: 5px;
	padding-bottom: 3px;
	padding-left: 5px;
	background-color: #F1DD34;
}
.inputtd
{
	font-size:12px;
	vertical-align:top;
	padding-top: 3px;
	padding-right: 3px;
	padding-bottom: 3px;
	padding-left: 3px;
}
.inputtd2
{
	text-align: center;
	font-size:12px;
	vertical-align:top;
	padding-top: 3px;
	padding-right: 3px;
	padding-bottom: 3px;
	padding-left: 3px;
}
.tablebg
{
	font-size:12px;
}

.tb{
	border-collapse: collapse;
	border: 1px outset #999999;
	background-color: #FFFFFF;
}
.td2{line-height:22px; text-align:center; background-color:#F6F6F6;}
.td3{background-color:#B8D3F4; text-align:center; line-height:20px;}
.td4{background-color:#F6F6F6;line-height:20px;}
.td5{border:#000000 solid;
       border-right-0px;
	   border-left-0px;
	   border-top-0px;
	   border-bottom-1px;}

.tb td{
font-size: 12px;
border: 2px groove #ffffff;
}




.noborder {
	border: none;
}

.button {
	border: 1px ridge #ffffff;
	line-height:18px;
	height: 20px;
	 45px;
	padding-top: 0px;
	background:#CBDAF7;
	color:#000000;
	font-size: 9pt;
    font-family:Courier;;
} 

.textarea {
	font-family: Arial, Helvetica, sans-serif, "??";
	font-size: 9pt;
	color: #000000;
	border-bottom- 1px;
	border-top-style: none;
	border-right-style: none;
	border-bottom-style: solid;
	border-left-style: none;
	border-bottom-color: #000000;
	background-color:transparent;
	text-align: left
}
-->
</style></head>

<body>

<div style="border:1px dashed #E6E6E6;margin:150px 0px 0px 450px; 350px; height:200px; background-color:#E6E6E6;">
<table width="285" height="169" border="0" align="left" cellpadding="0" cellspacing="0" style="margin:15px 0px 0px 15px;">
  <tr>
    <td width="126">
    	<!--multiple="multiple" 能同一时候选择多个   size="10"  确定下拉选的长度-->
		<select name="first" size="10" multiple="multiple" class="td3" id="first">
		  <option value="选项1">选项1</option>
		  <option value="选项2">选项2</option>
		  <option value="选项3">选项3</option>
		  <option value="选项4">选项4</option>
		  <option value="选项5">选项5</option>
		  <option value="选项6">选项6</option>
		  <option value="选项7">选项7</option>
		  <option value="选项8">选项8</option>
		</select>    
	</td>
    <td width="69" valign="middle">
       <input name="add"  id="add" type="button" class="button" value="-->" /> 
       <input name="add_all" id="add_all" type="button" class="button" value="==>" /> 
       <input name="remove"  id="remove" type="button" class="button" value="<--" />
	   <input name="remove_all" id="remove_all" type="button" class="button" value="<==" />
        </td>
    <td width="127" align="left">
	  <select name="second" size="10" multiple="multiple" class="td3" id="second">
         <option value="选项9">选项9</option>
      </select>
	</td>
  </tr>
</table>
</div>
</body>
  <script type="text/javascript">
	$("#add").click(function(){
		$("select[name='first'] option:selected").appendTo($("select[name='second']"));
	});

	$("#remove").click(function(){
		$("select[name='second'] option:selected").appendTo($("select[name='first']"));
	});
	$("#add_all").click(function(){
		$("select[name='first'] option").appendTo($("select[name='second']"));
	});
	$("#remove_all").click(function(){
		$("select[name='second'] option").appendTo($("select[name='first']"));
	});
  </script>
</html>


案例2：主要完毕当店家提交的时候把输入域中中的值加入到表格中，当点击删除的时候会删除...

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
		<script language="JavaScript" src="../js/jquery-1.4.2.js"></script>
		<title>加入用户</title>
	</head>
	<body>
		<center>
			<br><br>
			加入用户:<br><br>
			姓名: <input type="text" name="name" id="name"/>  
			email: <input type="text" name="email" id="email" />  
			电话: <input type="text" name="tel" id="tel" /><br><br>
			<button id="addUser">提交</button>
			<br><br>
			<hr>
			<br><br>
			<table id="usertable" border="1" cellpadding="5" cellspacing=0>
				<tbody>
					<tr>
						<th>姓名</th>
						<th>email</th>
						<th>电话</th>
						<th> </th>
					</tr>
					<tr>
						<td>Tom</td>
						<td>tom@tom.com</td>
						<td>5000</td>
						<td><a href="deleteEmp?
id=Tom">Delete</a></td>
					</tr>
					<tr>
						<td>Jerry</td>
						<td>jerry@sohu.com</td>
						<td>8000</td>
						<td><a href="deleteEmp?
id=Jerry">Delete</a></td>
					</tr>
				</tbody>
			</table>
		</center>
	</body>
	<script language="JavaScript">
		$("#addUser").click(function(){
			var $tr = $("<tr></tr>");
			
			var $nameTd = $("<td></td>");
			$nameTd.text($("#name").val());
			$tr.append($nameTd);
			
			var $emailTd = $("<td></td>");
			$emailTd.text($("#email").val());
			$tr.append($emailTd);
			
			var $telTd = $("<td></td>");
			$telTd.text($("#tel").val());
			$tr.append($telTd);

			var $delTd=$("<td></td>");
			var $a=$("<a href='#'>Delete</a>")
			$delTd.append($a);
			$tr.append($delTd);
			
			$a.click(function(){
				$tr.remove();
			});
			
			$("#usertable tbody").append($tr);
		});
	</script>
</html>


案例三：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
		<title>Untitled Document</title>
		<script language="JavaScript" src="../js/jquery-1.4.2.js"></script>
	</head>
	<body>
		<form method="post" action="">
		   	请选择您的爱好!
			<br><input type="checkbox" id="checkedAll_2"/>全选/全不选
		   	<br/>
		    <input type="checkbox" name="items" value="足球"/>足球
			<input type="checkbox" name="items" value="篮球"/>篮球
			<input type="checkbox" name="items" value="游泳"/>游泳
			<input type="checkbox" name="items" value="唱歌"/>唱歌
		   	<br/>
		    <input type="button" id="CheckedAll" value="全　选"/>
		    <input type="button" id="CheckedNo" value="全不选"/>
		    <input type="button" id="CheckedRev" value="反　选"/> 
		
			<input type="button" id="send" value="提　交"/> 
		</form>
	</body>
	
	<script language="JavaScript">
 	$("#checkedAll_2").click(function(){
		$(":checkbox").attr("checked",$("#checkedAll_2").attr("checked"));
	});
	$("#CheckedAll").click(function(){
		$(":checkbox[name='items']").attr("checked",true);
	});
	$("#CheckedNo").click(function(){
		$(":checkbox[name='items']").attr("checked",false);
	});
	$("#CheckedRev").click(function(){
		$(":checkbox[name='items']").each(function(i,obj){
			$(obj).attr("checked" ,!$(obj).attr("checked"))
		});
		
	});
	</script>
</html>


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原文地址：https://www.cnblogs.com/slgkaifa/p/6724707.html