no message

pages/teamLeader/components/QRCode.vue

@@ -3,6 +3,8 @@
     .orcodeBox{
         background: #fff;
         border-radius: 8rpx;
+		position: relative;
+		z-index: 2;
     }
     .Title{
         
@@ -33,7 +35,13 @@
 		margin-top: 40rpx;
 		margin-bottom: 0;
 	}
-
+	.sty-box {
+		width: 750px;
+		height: 1344px;
+		position: absolute;
+		top: -2000px;
+		left: -1500px;
+	}
 </style>
 <template>
      <u-popup mode="center" border-radius="20" 
@@ -60,6 +68,7 @@
                 <view class="flex1 PY20 text-center" @click="close">取消</view>
                 <view class="flex1 PY20 text-center" @click="preservation">保存</view>
             </view>
+			<canvas canvas-id="firstCanvas" class="sty-box" @error="canvasIdErrorCallback"></canvas>
         </view>
     </u-popup>
 </template>
@@ -203,6 +212,9 @@ export default {
 				);
             
         },
+		canvasIdErrorCallback: function(e) {
+			console.error(e.detail.errMsg);
+		}
     }
 }
 </script>
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