update

@@ -17,7 +17,7 @@
                 <span class="iconfont">&#xe61f;</span>
             </div>
             <span class="img-up-tip">0/4</span>
-            <span class="warn hide">
+            <span class="warn">
                 <span class="iconfont blue">&#xe60d;</span>
                 <span class="blue">最多上传4张照片</span>
             </span>

@@ -348,7 +348,7 @@ function bindImgDeleteEvent() {
         var number = $(this).closest('.left.right-content').find('.thumb-box').length - 1;
 
         $t.text(number + '/4');
-        $thumb.siblings('.warn').addClass('hide');
+        $thumb.siblings('.img-upload').show();
         $thumb.remove();
     });
 }
@@ -381,13 +381,15 @@ function bindUploadEvent() {
                         $t.text(n + '/4');
                         bindImgDeleteEvent();
 
+                        if (n >= 4) {
+                            $(that).hide();
+                        }
+
                     } else {
                         new _alert(result.message).show();
                     }
                 }
             });
-        } else {
-            $(that).siblings('.warn').removeClass('hide');
         }
     });
 }