jQuery插件之jquery.spinner数字智能增减插件
参考地址:http://www.helloweba.com/view-blog-282.html
左右加减数字
像京东提交订单时目前使用的是左右加减数字的效果，这个效果直接明了，操作简单。我们使用jquery.spinner.js插件实现左右加减数字，调用方法非常简单，请看演示示例1。
<input type="text" class="spinner"/> 调用也非常简单，先载入jquery库文件和jquery.spinner.js，然后使用以下代码：
$('.spinner').spinner(); Bootstrap风格，右侧加减
Bootstrap火了很久了，基于bootstrap风格的各类应用也非常多，下面给大家介绍一个基于bootstrap的数字加减插件，可以设置最小值、最大值、递增递减（步长值），可手动输入数字。
<div class="input-group spinner" data-trigger="spinner" id="spinner"> <input type="text" class="form-control" value="1" data-max="10" data-min="1" data-step="1"> <div class="input-group-addon"> <a href="javascript:;" class="spin-up" data-spin="up"><i class="icon-sort-up"></i></a> <a href="javascript:;" class="spin-down" data-spin="down"><i class="icon-sort-down"></i></a> </div> </div> 将bootstrap相关css和js文件载入后，便可直接看到页面效果，如果你的项目基于bootstrap，那么直接就可以调用它了。请看演示示例2
您还可以参考该项目地址：https://github.com/xixilive/jquery-spinner查看相关参数设置。
jQuery ui风格，右侧加减
jQuery ui也提供了数字加减插件，可以设置最小值、最大值、递增递减（步长值），可手动输入数字。请看演示示例3
<input type="text" id="spinner"/> 如果你的项目使用了jquery ui，那就可以调用jquery ui来实现数字加减的功能了。
$("#spinner").spinner({
max:10,
min:0,
step:2
}); <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>jquery插件spinner</title>
<link rel="stylesheet" href="dist/css/bootstrap.min.css">
<link rel="stylesheet" href="dist/css/font-awesome.min.css">
<link rel="stylesheet" href="dist/css/bootstrap-spinner.css">
<script src="dist/js/jquery-1.10.2.min.js"></script>
<script src="dist/js/bootstrap.min.js"></script>
<script src="dist/js/jquery.spinner.js"></script>
<script>
$(function() {
$("#spinner").spinner({max:10,min:0,step:2});
$('#customize-spinner').spinner('changed', function(e, newVal, oldVal) {
$('#old-val').text(oldVal);
$('#new-val').text(newVal);
});
});
</script>
</head>
<body>
<div class="container">
<h1>Examples for jQuery spinner</h1>
<ul class="muted">
<li>Arrow-up for increment</li>
<li>Arrow-down for decrement</li>
<li>Press Arrows or Left-mouse cause continuous changing</li>
</ul>
<div class="well">
<h2>Quantity:</h2>
<div class="input-group spinner" data-trigger="spinner">
<input type="text" id="spinner" data-step =" 10 " data-max="100" data-min="1" class="form-control text-center" value="10" data-rule="quantity">
<div class="input-group-addon">
<a href="javascript:;" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></a>
<a href="javascript:;" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></a>
</div>
</div>
</div>
<div class="well">
<h2>Currency:</h2>
<div class="input-group spinner" data-trigger="spinner">
<input type="text" class="form-control text-center" value="1" data-rule="currency">
<div class="input-group-addon">
<a href="javascript:;" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></a>
<a href="javascript:;" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></a>
</div>
</div>
</div>
<div class="well">
<h2>Percent:</h2>
<div class="input-group spinner" data-trigger="spinner">
<input type="text" class="form-control text-center" value="1" data-rule="percent">
<div class="input-group-addon">
<a href="javascript:;" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></a>
<a href="javascript:;" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></a>
</div>
</div>
</div>
<div class="well">
<h2>Month:</h2>
<div class="input-group spinner" data-trigger="spinner">
<input type="text" class="form-control text-center" value="1" data-rule="month">
<div class="input-group-addon">
<a href="javascript:;" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></a>
<a href="javascript:;" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></a>
</div>
</div>
</div>
<div class="well">
<h2>Customize (even number less than 200):</h2>
<div class="input-group spinner" data-trigger="spinner" id="customize-spinner">
<input type="text" class="form-control text-center" value="0" data-max="200" data-min="0" data-step="2">
<div class="input-group-addon">
<a href="javascript:;" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></a>
<a href="javascript:;" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></a>
</div>
</div>
<p>Event handler: changed</p>
<p>
Old = <span id="old-val"></span>, New = <span id="new-val"></span>
</p>
</div>
<div class="well">
<h2>Disabled input:</h2>
<div class="input-group spinner" data-trigger="spinner">
<input type="text" class="form-control text-center" value="100" disabled>
<div class="input-group-addon">
<a href="javascript:;" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></a>
<a href="javascript:;" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></a>
</div>
</div>
</div>
<div class="well">
<h2>Control sizing:</h2>
<div class="input-group input-group-sm spinner" data-trigger="spinner">
<input type="text" class="form-control text-center" value="1">
<div class="input-group-addon">
<button type="button" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></button>
<button type="button" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></button>
</div>
<div class="input-group-addon">
<button type="button" class="spin-up" data-spin="up"><span class="glyphicon glyphicon-triangle-top"></span></button>
<button type="button" class="spin-down" data-spin="down"><span class="glyphicon glyphicon-triangle-bottom"></span></button>
</div>
</div>
<br>
<div class="input-group input-group-lg spinner" data-trigger="spinner">
<input type="text" class="form-control text-center" value="1">
<div class="input-group-addon">
<button type="button" class="spin-up" data-spin="up"><i class="fa fa-caret-up"></i></button>
<button type="button" class="spin-down" data-spin="down"><i class="fa fa-caret-down"></i></button>
</div>
<div class="input-group-addon">
<button type="button" class="spin-up" data-spin="up"><span class="glyphicon glyphicon-triangle-top"></span></button>
<button type="button" class="spin-down" data-spin="down"><span class="glyphicon glyphicon-triangle-bottom"></span></button>
</div>
</div>
</div>
</div>
</body>
</html>
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width; initial-scale=1.0">
<title>演示：jQuery数字加减插件</title>
<link rel="stylesheet" href="spinner/jquery.spinner.css" />
<link rel="stylesheet" href="./css/main.css" />
<script type="text/javascript" src="./js/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="spinner/jquery.spinner.js"></script>
<style type="text/css">
.demo{width:560px; margin:20px auto 0 auto; }
.demo h4{padding:10px 2px; font-size:14px; font-weight:bold}
.demo p{line-height:32px}
@media screen and (max-width: 360px) {.demo {width:340px}}
</style>
</head>
<body>
<div id="header">
<div id="logo"><h1><a href="http://www.helloweba.com" title="返回helloweba首页">helloweba</a></h1></div>
<div class="demo_topad"></div>
</div>
<div id="main">
<h2 class="top_title"><a href="http://www.helloweba.com/view-blog-282.html">jQuery数字加减插件</a></h2>
<div class="demo">
<h4>示例1：左右加减。</h4>
<p>最小0，默认1，每次加减1</p>
<input type="text" class="spinner"/>
</div>
<br/>
</div>
<script type="text/javascript">
$('.spinner').spinner();
</script>
</body>
</html>
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