<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>RunJS</title> <script id="jquery_183" type="text/javascript" class="library" src="/js/sandbox/jquery/jquery-1.8.3.min.js"></script> </head> <body> <h1 > 实时监测input中值的变化 </h1> <input type="text" id="username" autoComplete='off'> <div id="result"></div> </body> </html> $(function(){ $('#username').bind('input propertychange', function() { $('#result').html($(this).val().length + ' characters'); }); })
$(document).ready(function () { $('#phonenum,#verifycode').bind('input propertychange',$('#verifycode').bind('input propertychange'), function(){ btnSwitch() btnApplySwith() }) })