跑马灯字数限制改为50

suishenbang-admin/src/main/resources/templates/system/lantern/add.html

@@ -17,7 +17,7 @@
             <div class="form-group">    
                 <label class="col-sm-3 control-label">内容：</label>
                 <div class="col-sm-8">
-                    <input name="content" placeholder="请填写(30字以内)" class="form-control" type="text" maxlength="50">
+                    <input name="content" placeholder="请填写(50字以内)" class="form-control" type="text" maxlength="50">
                 </div>
             </div>
             <div class="form-group">