修改需求

src/model/app.vue

@@ -33,7 +33,8 @@ export const Model = defineComponent({
   name: 'model',
   setup() {
     const scene = computed(() => modelProps.type !== fuseModel && modelProps.type)
-    const url = computed(() => {
+    const url = ref("")
+    watchEffect(() => {
       if (!scene.value) return;
       const type = scene.value.type
       const urls = {
@@ -43,8 +44,20 @@ export const Model = defineComponent({
         [SceneType.SWSSMX]: `/swkk/spg.html?m=${scene.value.num}`,
         [SceneType.SWMX]: `index.html?caseId=${params.caseId}&modelId=${scene.value.num}&share=1#sign-model`
       }
-      return urls[type]
+      if (urls[type] !== url.value) {
+        setTimeout(() => {
+          const hook = (iframeRef.value?.contentWindow as any)?.beforeDestroy
+          if (hook) {
+            hook()
+            setTimeout(() => url.value = urls[type], 300)
+          } else {
+            url.value = urls[type]
+          }
+        })
+      }
     })
+
+
     const fuseRef = ref<HTMLDivElement>()
     const iframeRef = ref<HTMLIFrameElement>()