diff --git a/components/ProductWindow.vue b/components/ProductWindow.vue
index 4d7f731..acee08f 100644
--- a/components/ProductWindow.vue
+++ b/components/ProductWindow.vue
@@ -66,18 +66,16 @@ export default {
       type: Object,
       default: () => {}
     },
-    productValue: {
-      type: Object,
-      default: () => {}
+    // 使用字符串再转成对象的原因是，当key='2.5g'时，会变成key='2'，导致数据丢失
+    productValueStr: {
+      type: String,
+      default: '{}'
     },
     cartNum: {
       type: Number,
       default: () => 1
     }
   },
-  data: function() {
-    return {};
-  },
   methods: {
 	  previewImg:function(imgUrl){
 		  uni.previewImage({
@@ -85,50 +83,49 @@ export default {
 		  })
 	  },
     closeAttr: function() {
-      this.$emit("changeFun", { action: "changeattr", value: false });
+      this.$emit("changeFun", { action: "changeattr", value: false })
     },
     CartNumDes: function() {
-      this.$emit("changeFun", { action: "ChangeCartNum", value: false });
+      this.$emit("changeFun", { action: "ChangeCartNum", value: false })
     },
     CartNumAdd: function() {
-      this.$emit("changeFun", { action: "ChangeCartNum", value: 1 });
+      this.$emit("changeFun", { action: "ChangeCartNum", value: 1 })
     },
     tapAttr: function(indexw, indexn, itemn) {
-      if (this.productValue[itemn.attr].stock === 0) {
-        return
+      const productValue = JSON.parse(this.productValueStr || '{}')
+      if (productValue[itemn.attr]) {
+        if (productValue[itemn.attr].stock === 0) {
+          return
+        }
       }
       // 修改商品规格不生效的原因：
       // H5端下面写法，attr更新，但是除H5外其他端不支持，
       // 尽量避免下面的骚写法，不要在子组件内更新props
       // 这里修改是为了能获取到被选中的属性
-      this.attr.productAttr[indexw].index = indexn;
-      let that = this;
-      let value = that
-        .getCheckedValue()
-        .sort()
-        .join(",");
-      that.$emit("changeFun", {
+      this.attr.productAttr[indexw].index = indexn
+      const value = this.getCheckedValue().sort().join(",")
+      this.$emit("changeFun", {
         action: "ChangeAttr",
         value: {
           value,
           indexw,
           indexn
         }
-      });
+      })
     },
-    //获取被选中属性；
+    // 获取被选中属性
     getCheckedValue: function() {
-      let productAttr = this.attr.productAttr;
-      let value = [];
+      const productAttr = this.attr.productAttr
+      const value = []
       for (let i = 0; i < productAttr.length; i++) {
         for (let j = 0; j < productAttr[i].attrValueArr.length; j++) {
           if (productAttr[i].index === j) {
-            value.push(productAttr[i].attrValueArr[j]);
+            value.push(productAttr[i].attrValueArr[j])
           }
         }
       }
-      return value;
+      return value
     }
   }
-};
+}
 </script>
diff --git a/pages/shop/GoodsCon/index.vue b/pages/shop/GoodsCon/index.vue
index 4656fe4..d68156a 100644
--- a/pages/shop/GoodsCon/index.vue
+++ b/pages/shop/GoodsCon/index.vue
@@ -475,7 +475,7 @@
         <ProductWindow
           v-on:changeFun="changeFun"
           :attr="attr"
-          :product-value="productValue"
+          :product-value-str="JSON.stringify(productValue)"
           :cartNum="cart_num"
         />
         <StorePoster v-on:setPosterImageStatus="setPosterImageStatus" :posterImageStatus="posterImageStatus"