diff --git a/components/ProductWindow.vue b/components/ProductWindow.vue
index fd3747e..226bf0e 100644
--- a/components/ProductWindow.vue
+++ b/components/ProductWindow.vue
@@ -181,7 +181,7 @@ export default {
       this.$emit("changeFun", { action: "ChangeCartNum", value: this.cartNumber })
     },
     CartNumAdd() {
-      
+      if(this.cartNumber >= this.attrObj.productSelect.stock)  return
       this.cartNumber++
       this.$emit("changeFun", { action: "ChangeCartNum", value: this.cartNumber })
     },