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  • 禁止文本框输入中文和空格(适用于密码输入框)


    <!DOCTYPE html>  
    <html lang="en">  
    <head>  
      <meta charset="utf-8">  
      <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">  
      <title>Swiper demo</title>  
      <style>  
      
      </style>  
    </head>  
    <body>  
    <input type="text" name="" id="m-input">  
      
      
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>  
      
    <script>  
    $('#m-input').on('keyup change', function () {  
      var that = $(this);  
      var val = that.val();  
      var temp = ""   
      for(var i = 0; i < val.length; i++) {  
          var char = val.charCodeAt(i);  
          if (char > 0 && char < 255 && char !== 32) {  
              temp += val.charAt(i)   
          }  
      }  
      that.val(temp);    
    });  
    </script>  
    </body>  
    </html>




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  • 原文地址:https://www.cnblogs.com/xutongbao/p/9924859.html
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