diff --git a/pages/goodsDetail/index.vue b/pages/goodsDetail/index.vue
index 6408830..96f8e42 100644
--- a/pages/goodsDetail/index.vue
+++ b/pages/goodsDetail/index.vue
@@ -102,7 +102,7 @@
 		</skeleton>
 
 		<view class="canvas-box">
-			<canvas style="width: 375px;height: 667px;position:fixed;top:9999px" canvas-id="mycanvas" />
+			<canvas style="width: 375px;height: 496px;position:fixed;top:9999px" canvas-id="mycanvas" />
 		</view>
 
 		<view class='imagePathBox' v-if="maskHidden == true && imagePath" @click="maskHidden = false ">
@@ -279,7 +279,7 @@
 			},
 			createNewImg() {
 				var that = this;
-				var context = uni.createCanvasContext('mycanvas');
+				var context = uni.createCanvasContext('mycanvas', this);
 				let goods = that.goods_detail;
 				let title = goods.name;
 				let price = '￥'+goods.specs[0].selling_price;