update：火箭发射卫星入轨案例代码结构的修改

src/examples/movingTarget/rocketLaunchIntoOrbit/rocketLaunchIntoOrbit-function.js

-export function addRocketLaunchIntoOrbit() {
-    const script = document.createElement('script');
-    script.src = 'https://cesium.com/downloads/cesiumjs/releases/1.99/Build/Cesium/Cesium.js';
-    script.onload = () => {
-        window.Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3Njg4ZWU5Yi1iZDhiLTRhYmUtOTRiYS04YjM5NmUwNjVmMDMiLCJpZCI6MjI3MzQ3LCJpYXQiOjE3MjA1MjA4Mjh9.E5XW4LnwgfVAaBC-znaYr61m4yK0-j2qEQhi9qwFFPE'
-  
-        var viewer = new Cesium.Viewer('cesiumContainer', {
-          shouldAnimate: true  // 一开始就播放动画
-        });    
-    
+export function addRocketLaunchIntoOrbit(viewer) {
     var czml =
       [
         {
@@ -463,13 +454,5 @@ export function addRocketLaunchIntoOrbit() {
     }).catch(function (error) {
       console.error(error);
     });
-        
-    };
-    document.head.appendChild(script);
-  
-    const link = document.createElement('link');
-    link.rel = 'stylesheet';
-    link.href = 'https://cesium.com/downloads/cesiumjs/releases/1.119/Build/Cesium/Widgets/widgets.css';
-    document.head.appendChild(link);
-  }
+}
   
\ No newline at end of file

src/examples/movingTarget/rocketLaunchIntoOrbit/rocketLaunchIntoOrbit.vue

 <template>
     <div id="cesiumContainer" class="cesium-container"></div>
 </template>
+
 <script setup>
 import { onMounted } from 'vue';
 import { addRocketLaunchIntoOrbit } from './function';
+
+let viewer;
+
 onMounted(() => {
-    addRocketLaunchIntoOrbit()
+    const script = document.createElement('script');
+    script.src = 'https://cesium.com/downloads/cesiumjs/releases/1.99/Build/Cesium/Cesium.js';
+    script.onload = () => {
+        window.Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3Njg4ZWU5Yi1iZDhiLTRhYmUtOTRiYS04YjM5NmUwNjVmMDMiLCJpZCI6MjI3MzQ3LCJpYXQiOjE3MjA1MjA4Mjh9.E5XW4LnwgfVAaBC-znaYr61m4yK0-j2qEQhi9qwFFPE'
+  
+        viewer = new Cesium.Viewer('cesiumContainer', {
+          shouldAnimate: true  // 一开始就播放动画
+        });   
+
+        addRocketLaunchIntoOrbit(viewer)
+
+    };
+    document.head.appendChild(script);
+    const link = document.createElement('link');
+    link.rel = 'stylesheet';
+    link.href = 'https://cesium.com/downloads/cesiumjs/releases/1.119/Build/Cesium/Widgets/widgets.css';
+    document.head.appendChild(link);
 });
 </script>
 
 <style>
 .cesium-container {
-width: 100%;
-height: 100vh;
+    width: 100%;
+    height: 100vh;
 }
 </style>
\ No newline at end of file