JQuery案例练习
1.隔行换色
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>隔行换色</title>
<script src="../js/jquery-3.3.1.min.js"></script>
<script>
$(function () {
$("tr:gt(1):odd").css("backgroundColor","pink");
$("tr:gt(1):even").css("backgroundColor","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>0</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>1</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>2</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>3</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>2.全选和全不选
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../js/jquery-3.3.1.min.js"></script>
<script>
$(function () {
})
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>3.表情包选择
<!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>
$(function () {
$("ul li 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>4.左右移动
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>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>
$(function () {
$("#toRight").click(function () {
$("#rightName").append($("#leftName > option:selected"))
});
$("#toLeft").click(function () {
$("#leftName").append($("#rightName > option:selected"))
})
})
</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>版权属于：乐心湖's Blog
本文链接：https://cloud.tencent.com/developer/article/1774912
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