jquery+bootstrap使用数字增减按钮
<div class="container"><div class="page-header"><h1>Bootstrap 3 input-spinner</h1></div>
<label for="sign_times" class="hr-label col-md-6"><span
class="required">*</span><span class="hr-span">签订次数</span> </label>
<div class="input-group spinner">
<input type="text" class="form-control" value="42">
<div class="input-group-btn-vertical">
<button class="btn btn-default" type="button"><i class="fa fa-caret-up"></i></button>
<button class="btn btn-default" type="button"><i class="fa fa-caret-down"></i></button>
</div>
</div>
</div>.spinner {
width: 100px;
}
.spinner input {
text-align: right;
}
.input-group-btn-vertical {
position: relative;
white-space: nowrap;
width: 1%;
vertical-align: middle;
display: table-cell;
}
.input-group-btn-vertical > .btn {
display: block;
float: none;
width: 100%;
max-width: 100%;
padding: 8px;
margin-left: -1px;
position: relative;
border-radius: 0;
}
.input-group-btn-vertical > .btn:first-child {
border-top-right-radius: 4px;
}
.input-group-btn-vertical > .btn:last-child {
margin-top: -2px;
border-bottom-right-radius: 4px;
}
.input-group-btn-vertical i{
position: absolute;
top: 0;
left: 4px;
}(function ($) {
$('.spinner .btn:first-of-type').on('click', function() {
$('.spinner input').val( parseInt($('.spinner input').val(), 10) + 1);
});
$('.spinner .btn:last-of-type').on('click', function() {
$('.spinner input').val( parseInt($('.spinner input').val(), 10) - 1);
});
})(jQuery);
文档来源：51CTO技术博客https://blog.51cto.com/u_9955199/3225793
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