源代码:
<!doctype html> <html> <head> <meta charset="utf-8"> <title>jQuery UI 旋转器（Spinner） - 溢出</title> <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css"> <script src="//code.jquery.com/jquery-1.9.1.js"></script> <script src="/static/js/jqueryui/resources/demos/external/jquery.mousewheel.js"></script> <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script> <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css"> <script> $(function() { $( "#spinner" ).spinner({ spin: function( event, ui ) { if ( ui.value > 10 ) { $( this ).spinner( "value", -10 ); return false; } else if ( ui.value < -10 ) { $( this ).spinner( "value", 10 ); return false; } } }); }); </script> </head> <body> <p> <label for="spinner">选择一个值：</label> <input id="spinner" name="value"> </p> </body> </html>
运行结果：