日期:2014-05-16 浏览次数:20369 次
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=GBK" /> <title>artTxtCount demo by liehuo.net</title> <script type="text/javascript" src="http://www.veryhuo.com/uploads/common/js/jquery-1.4.2.min.js"></script> <script type="text/javascript"> /* tangbin - http://www.veryhuo.com - MIT Licensed */ (function($){ // tipWrap: 提示消息的容器 // maxNumber: 最大输入字符 $.fn.artTxtCount = function(tipWrap, maxNumber){ var countClass = 'js_txtCount', // 定义内部容器的CSS类名 fullClass = 'js_txtFull', // 定义超出字符的CSS类名 disabledClass = 'disabled'; // 定义不可用提交按钮CSS类名 // 统计字数 var count = function(){ var btn = $(this).closest('form').find(':submit'), val = $(this).val().length, // 是否禁用提交按钮 disabled = { on: function(){ btn.removeAttr('disabled').removeClass(disabledClass); }, off: function(){ btn.attr('disabled', 'disabled').addClass(disabledClass); } }; if (val == 0) disabled.off(); if(val <= maxNumber){ if (val > 0) disabled.on(); tipWrap.html('<span class="' + countClass + '">\u8FD8\u80FD\u8F93\u5165 <strong>' + (maxNumber - val) + '</strong> \u4E2A\u5B57</span>'); }else{ disabled.off(); tipWrap.html('<span class="' + countClass + ' ' + fullClass + '">\u5DF2\u7ECF\u8D85\u51FA <strong>' + (val - maxNumber) + '</strong> \u4E2A\u5B57</span>'); }; }; $(this).bind('keyup change', count); return this; }; })(jQuery); </script> <script type="text/javascript"> // demo jQuery(function(){ // 批量 $('.autoTxtCount').each(function(){ $(this).find('.text').artTxtCount($(this).find('.tips'), 140); }); // 单个 $('#test').artTxtCount($('#test_tips'), 10); }); </script> <style> /* demo */ body { font-size:75%; font-family:'微软雅黑'; } #demo { width:500px; } #demo .help, #demo .help a { color:#999; } #demo form { margin:20px 0; padding:8px; background:#F4F4F4; border:1px solid #EDEDED; } #demo .tips { color:#999; padding:0 5px; } #demo .tips strong { color:#1E9300; } #demo .tips .js_txtFull strong { color:#F00; } #demo textarea.text { width:474px; } </style> </head> <body> <div id="demo"> <h1>artTxtCount - 轻量级输入字数提示插件</h1> <p class="help">$('#text').artTxtCount($('#text_tips'), 10);</p> <p class="help">by tangbin. <a href="http://www.veryhuo.com" target="_blank" title="planeArt">www.veryhuo.com</a></p> <form class="autoTxtCount" action="" method="get"> <div> <textarea class="text" name="" cols="50" rows="3"></textarea> </div> <div> <button type="submit">提交</button> <span class="tips"></span> </div> </form> <form class="autoTxtCount" action="" method="get"> <div> <textarea class="text" name="" cols="50" rows="3"></textarea> </div> <div> <button type="submit">提交</button> <span class="tips"></span> </div> </form> <form action="" method="get"> <input class="text" id="test" name="" type="text" /> <span id="test_tips" class="tips"></span><br /> <button type="submit">提交</button> </form> </div> </body> </html><br /><center>如不能显示效果,请按Ctrl+F5刷新本页,更多网页代码:<a href='http://www.veryhuo.com/' target='_blank'>http://www.veryhuo.com/</a></center>