以useRouter()为例
<script setup> import { useRouter } from 'vue-router' const buttonGoHome = () => useRouter().push({ name: 'Home' }) </script>控制台直接报错 警告我们说inject() can only be used inside setup() or functional components. 这是因为，我们要在外面拿一个变量把他放起来
<script setup> import { useRouter } from 'vue-router' const mRouter = useRouter() const buttonGoHome = () => mRouter.push({ name: 'Home' }) </script>这样子就好咯
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![当vue3提示[Vue warn]: inject() can only be used inside setup() or functional compon](/upload/article/20240208/09045965c428bb0c38ak800qm.png "当vue3提示[Vue warn]: inject() can only be used inside setup() or functional compon")
![当vue3提示[Vue warn]: Vue received a Component which was made a reactive object._小蓝](/upload/article/20240209/05142865c5443424b0fzunxac.png "当vue3提示[Vue warn]: Vue received a Component which was made a reactive object._小蓝")