diff --git a/pages/cart/cart/cart.js b/pages/cart/cart/cart.js
index 7bb4191..ec3ce0b 100644
--- a/pages/cart/cart/cart.js
+++ b/pages/cart/cart/cart.js
@@ -378,7 +378,10 @@ Page({
     a = this.data.requestData[b].goods[a];
     this.data.btn_click=1;
 
-    if (a.goods_num - 1 < 0) return false;
+    if (a.goods_num - 1 < 0){		
+		this.data.up_dating = 0;  
+		return false;
+	} 
 
     if (1 != a.goods_num) {
       var e = {