From 0be516fd1a5b08b6c2c5f6d39363efc61fddb550 Mon Sep 17 00:00:00 2001
From: guy <guy@finereport.com>
Date: Mon, 30 Oct 2017 15:20:40 +0800
Subject: [PATCH] update

---
 dist/fix/fix.js | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/dist/fix/fix.js b/dist/fix/fix.js
index 534d30b41..7fc2bbff3 100644
--- a/dist/fix/fix.js
+++ b/dist/fix/fix.js
@@ -438,14 +438,15 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
         return ob;
     }
 
-    function defineReactive(obj, shallow) {
+    function defineReactive(obj, observer, shallow) {
 
         var props = {};
         _.each(obj, function (val, key) {
             if (key in $$skipArray) {
                 return;
             }
-            var dep = new Dep();
+            var dep = observer && observer['__dep' + key] || new Dep();
+            observer && (observer['__dep' + key] = dep);
             var childOb = !shallow && observe(val);
             props[key] = {
                 enumerable: true,
@@ -501,9 +502,10 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
             target[key] = val;
             return val;
         }
-        defineReactive(ob.value, key, val);
+        ob.value[key] = val;
+        target = defineReactive(ob.value, ob);
         ob.dep.notify();
-        return val;
+        return target;
     }
 
     /**
@@ -521,11 +523,14 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
         if (!_.has(target, key)) {
             return;
         }
-        delete target[key];
         if (!ob) {
-            return;
+            delete target[key];
+            return target;
         }
+        delete ob.value[key];
+        target = defineReactive(ob.value, ob);
         ob.dep.notify();
+        return target;
     }
 
     /**