修改默认图逻辑

src/main.js

@@ -48,5 +48,6 @@ import '@/assets/plugins/bootstrap-treeview/css/bootstrap-treeview.min.css'
 import '@/assets/plugins/bootstrap-treeview/js/bootstrap-treeview.min.js'
 
 import components from '@/utils/components.js'
+import mixin from '@/utils/mixin.js'
 
-createApp(App).use(store).use(router).use(components).mount('#app')
+createApp(App).mixin(mixin).use(store).use(router).use(components).mount('#app')

src/utils/mixin.js

@@ -1,15 +1,18 @@
 export default {
     mounted() {
         this.$nextTick(() => {
-            const images = document.getElementsByTagName('img')
+            const images = document.getElementsByTagName('img');
             for (let i = 0; i < images.length; i++) {
-                images[i].addEventListener('error', this.handleImageError)
+                images[i].addEventListener('error', this.handleImageError);
             }
         })
     },
     methods: {
         handleImageError(event) {
-            event.target.src = require('@/assets/images/default.png')
+            let src = event.target.src;
+            if (!src) {
+                event.target.src = require('@/assets/images/default.png');
+            }
         },
     },
 }