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  • jquery完美实现textarea输入框限制字数

    <html>
    <head>
    <title> jquery完美实现textarea输入框限制字数</title>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <script type="text/javascript" src="jquery-1.8.2.min.js"></script>
    <script type="text/javascript">
     $(function(){
      $("#weibo").keyup(function(){
       var len = $(this).val().length;
       if(len > 139){
        $(this).val($(this).val().substring(0,140));
       }
       var num = 140 - len;
       $("#word").text(num);
      });
     });
    </script>
    <style type="text/css">
    h6{color:blue;}
    textarea{resize:none;}
    #word{color:red;}
    </style>
    </head>
    <body>
    <h6>说点什么吧,你可以输入<span>140</span>个字,现在剩余<span id="word">140</span>个</h6>
    <textarea name="con" id="weibo" cols="45" rows="6"></textarea>
    </body>
    </html>
    
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  • 原文地址:https://www.cnblogs.com/wujixing/p/6000043.html
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