案例1
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>隔行换色</title>
<script src="../../js/jquery-3.3.1.min.js"></script>
<script>
//需求：将数据行的奇数行背景色设置为 pink，偶数行背景色设置为 yellow
$(function () {
$("tr:gt(1):odd").css("background","pink");
$("tr:gt(1):even").css("background","yellow");
});
</script>
</head>
<body>
<table id="tab1" border="1" width="800" align="center" >
<tr>
<td colspan="5"><input type="button" value="删除"></td>
</tr>
<tr style="background-color: #999999;">
<th><input type="checkbox"></th>
<th>分类ID</th>
<th>分类名称</th>
<th>分类描述</th>
<th>操作</th>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>1</td>
<td>手机数码</td>
<td>手机数码类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>2</td>
<td>电脑办公</td>
<td>电脑办公类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>3</td>
<td>鞋靴箱包</td>
<td>鞋靴箱包类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox"></td>
<td>4</td>
<td>家居饰品</td>
<td>家居饰品类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
</table>
</body>
</html>
案例2
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>全选和消选</title>
<script src="../../js/jquery-3.3.1.min.js"></script>
<script>
function selectAll(obj) {
$(".itemSelect").prop("checked",obj.checked)
}
</script>
</head>
<body>
<table id="tab1" border="1" width="800" align="center" >
<tr>
<td colspan="5"><input type="button" value="删除"></td>
</tr>
<tr>
<th><input type="checkbox" onclick="selectAll(this)" ></th>
<th>分类ID</th>
<th>分类名称</th>
<th>分类描述</th>
<th>操作</th>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>1</td>
<td>手机数码</td>
<td>手机数码类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>2</td>
<td>电脑办公</td>
<td>电脑办公类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>3</td>
<td>鞋靴箱包</td>
<td>鞋靴箱包类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
<tr>
<td><input type="checkbox" class="itemSelect"></td>
<td>4</td>
<td>家居饰品</td>
<td>家居饰品类商品</td>
<td><a href="">修改</a>|<a href="">删除</a></td>
</tr>
</table>
</body>
</html>
案例3
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8"/>
<title>QQ表情选择</title>
<script src="../../js/jquery-3.3.1.min.js"></script>
<style type="text/css">
* {
margin: 0;
padding: 0;
list-style: none;
}
.emoji {
margin: 50px;
}
ul {
overflow: hidden;
}
li {
float: left;
width: 48px;
height: 48px;
cursor: pointer;
}
.emoji img {
cursor: pointer;
}
</style>
<script>
//需求：点击qq表情，将其追加到发言框中
$(function () {
$("ul img").click(function () {
$(".word").append($(this).clone());
});
});
</script>
</head>
<body>
<div class="emoji">
<ul>
<li><img src="img/01.gif" height="22" width="22" alt=""/></li>
<li><img src="img/02.gif" height="22" width="22" alt=""/></li>
<li><img src="img/03.gif" height="22" width="22" alt=""/></li>
<li><img src="img/04.gif" height="22" width="22" alt=""/></li>
<li><img src="img/05.gif" height="22" width="22" alt=""/></li>
<li><img src="img/06.gif" height="22" width="22" alt=""/></li>
<li><img src="img/07.gif" height="22" width="22" alt=""/></li>
<li><img src="img/08.gif" height="22" width="22" alt=""/></li>
<li><img src="img/09.gif" height="22" width="22" alt=""/></li>
<li><img src="img/10.gif" height="22" width="22" alt=""/></li>
<li><img src="img/11.gif" height="22" width="22" alt=""/></li>
<li><img src="img/12.gif" height="22" width="22" alt=""/></li>
</ul>
<p class="word">
<strong>请发言：</strong>
<img src="img/12.gif" height="22" width="22" alt=""/>
</p>
</div>
</body>
</html>
案例4
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="../../js/jquery-3.3.1.min.js"></script>
<style>
#leftName , #btn,#rightName{
float: left;
width: 100px;
height: 300px;
}
#toRight,#toLeft{
margin-top:100px ;
margin-left:30px;
width: 50px;
}
.border{
height: 500px;
padding: 100px;
}
</style>
<script>
//需求：实现下拉列表选择条目左右选择功能
$(function () {
//获取右移按钮
$("#toRight").click(function () {
//获取左边的选择框中被选中的option追加到右边
$("#leftName option:selected").appendTo($("#rightName"));
});
$("#toLeft").click(function () {
//获取右边的选择框中被选中的option追加到右边
$("#rightName option:selected").appendTo($("#leftName"));
});
});
</script>
</head>
<body>
<div class="border">
<select id="leftName" multiple="multiple">
<option>张三</option>
<option>李四</option>
<option>王五</option>
<option>赵六</option>
</select>
<div id="btn">
<input type="button" id="toRight" value="-->"><br>
<input type="button" id="toLeft" value="<--">
</div>
<select id="rightName" multiple="multiple">
<option>钱七</option>
</select>
</div>
</body>
</html>
