diff --git a/packageA/pages/goodsInfo/goodsInfo.js b/packageA/pages/goodsInfo/goodsInfo.js
index fcd3500..c2725bd 100644
--- a/packageA/pages/goodsInfo/goodsInfo.js
+++ b/packageA/pages/goodsInfo/goodsInfo.js
@@ -921,13 +921,22 @@ Page({
 								// 开启限购
 								if (th.data.sele_g.viplimited > 0) { 
 								
-									if (t > num) {
-										th.setData({goodsInputNum: num});
+									if (action != "buy") {
+										if (t > num) {
+											th.setData({goodsInputNum: num - cartGoodsNum < 0 ? 0 : num - cartGoodsNum});
+										}
+										if (redisNum < num) {
+											th.setData({goodsInputNum: redisNum - cartGoodsNum < 0 ? 0 : redisNum - cartGoodsNum});
+										}
+									} else {
+											if (num > redisNum) {
+												th.setData({goodsInputNum: redisNum});
+											} else {
+												th.setData({goodsInputNum: num});
+											}
 									}
 
-									if (redisNum < num) {
-										th.setData({goodsInputNum: redisNum});
-									} 
+									 
 
 
 								} else {