图片更新

components/writeSign/index.vue

@@ -2,7 +2,7 @@
 	<view style="width: 750rpx ;height: 500rpx;">
 		<jp-signature ref="signatureRef"></jp-signature>
 	</view>
-	<image :src="url" alt="" />
+	<image v-show="false" :src="url" alt="" />
 	<view>
 		<button @click="clear">清空</button>
 		<button @click="undo">撤消</button>