diff --git a/pages/cart/cart/cart.js b/pages/cart/cart/cart.js
index 429afca..786d303 100644
--- a/pages/cart/cart/cart.js
+++ b/pages/cart/cart/cart.js
@@ -2099,34 +2099,54 @@ Page({
 							if (th.data.sele_g.viplimited > 0) {
 								var gd_buy_num = th.data.promcardbuynum;
 								
-								if(t.goods_num > th.data.sele_g.goods_num) {
-									wx.showModal({
-											title: '超出活动库存',
-									});
+								// 如果限购数量>活动库存数量，增加数量时会先超过库存数量，此时应该提示“超出活动库存”；
+								// 如果限购数量<=活动库存数量，增加数量时会先超过限购数量，此时应提示“超出活动限购数量”
+								
+								if(th.data.sele_g.viplimited > th.data.sele_g.goods_num) {
+									// 计算还可以购买的数量：库存量 - 已购数
+									var num = th.data.sele_g.goods_num - gd_buy_num;
+									if(num < 0) num = 0;
+									if(t.goods_num > num) {
+										wx.showModal({
+												title: '超出活动库存',
+										});
+										
+										// var num = th.data.sele_g.goods_num;
+										th.setData({[txt]: num});
+										// t.goods_num = num;
+										// th.doCheckAll();
+										// th.update_cart_ser(t, pitem, item);
+										// return false;
+										
+									};
 									
-									var num = th.data.sele_g.goods_num;
-									th.setData({goodsInputNum: num})
-									return false;
+								} else {
+									
+									if ((t.goods_num + gd_buy_num> th.data.sele_g.viplimited) && (t.goods_num <= th.data.sele_g.goods_num)) {
+										wx.showModal({
+												title: '超出活动限购数量',
+										});
+																
+										var num = th.data.sele_g.viplimited - gd_buy_num;
+										if (num <= 0) num = 1;
+										
+										th.setData({
+											[txt]: num,
+											gdnum: num,
+										});
+										
+										// return false;
+									}
 									
 								};
 								
-								if ((t.goods_num + gd_buy_num> th.data.sele_g.viplimited) && (t.goods_num <= th.data.sele_g.goods_num)) {
-									wx.showModal({
-											title: '超出活动限购数量',
-									});
-							
-									var num = th.data.sele_g.viplimited - gd_buy_num;
-									if (num <= 0) num = 1;
-									
-									th.setData({
-										[txt]: num,
-										gdnum: num,
-									});
-									t.goods_num = num;
-									th.doCheckAll();
-									th.update_cart_ser(t, pitem, item);
-									// return false;
-								}
+								
+								t.goods_num = num;
+								th.doCheckAll();
+								th.update_cart_ser(t, pitem, item);
+								
+								
+								
 							};
 							
 						};