修改了扫码

src/components/QrCodeReader.vue

@@ -5,9 +5,8 @@
             @click="$router.back()"
             :src="require('../assets/back.png')"
             />
-        <!-- <p class="error">{{ error }}</p> -->
+        <p class="error">{{ error }}</p>
         <!--错误信息-->
-
         <!-- <p class="decode-result">
           扫描结果:
           <b>{{ result }}</b>
@@ -19,11 +18,9 @@
           <p @click="openFlash">打开手电筒</p>
           <p @click="switchCamera">相机反转</p>
       </div> -->
-
         <qrcode-stream
             v-show="qrcode"
-            :camera="camera"
-            :torch="torchActive"
+           
             @decode="onDecode"
             @init="onInit"
         >
@@ -53,7 +50,6 @@ import { QrcodeStream } from "vue-qrcode-reader";
 export default {
     // 注册
     components: { QrcodeStream },
-
     data() {
         return {
             result: "", // 扫码结果信息
@@ -73,13 +69,12 @@ export default {
             this.$emit('success',result)
         },
         async onInit(promise) {
-            const { capabilities } = await promise;
-
-            const TORCH_IS_SUPPORTED = !!capabilities.torch;
-            try {
-                await promise;
-            } catch (error) {
-                if (error.name === "NotAllowedError") {
+            // const { capabilities } = await promise;
+            
+            // const TORCH_IS_SUPPORTED = !!capabilities.torch;
+            promise.catch(error=>{
+                // alert(1111)
+                 if (error.name === "NotAllowedError") {
                     this.error = "ERROR: 您需要授予相机访问权限";
                 } else if (error.name === "NotFoundError") {
                     this.error = "ERROR: 这个设备上没有摄像头";
@@ -92,7 +87,8 @@ export default {
                 } else if (error.name === "StreamApiNotSupportedError") {
                     this.error = "ERROR: 此浏览器不支持流API";
                 }
-            }
+                // console.log(error.name)
+            })
         },
         // 打开相机
         // openCamera() {