Bootstrap输入反馈图标

<!DOCTYPE html>
<html>
   <head>
      <title>Bootstrap Example</title>
      <link href = /bootstrap/css/bootstrap.min.css rel = stylesheet>
      <script src = /scripts/jquery.min.js></script>
      <script src = /bootstrap/js/bootstrap.min.js></script>
   </head>
   <body>
      <div class = form-group has-feedback>
         <label class = col-sm-2 control-label for = inputSuccess>Example</label>
         <div class = col-sm-10>
            <input type = text class = form-control id = inputSuccess>
               <span class=glyphicon glyphicon-ok form-control-feedback></span>
         </div>
      </div>
   </body>
</html>

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