VM328:1 [Vue warn]: Error in mounted hook: “TypeError: Cannot read property ‘0‘ of undefined“ found
错就是在pages 页面文件里面的 home 文件夹 里面的组件 的menu.vue 里面的js 里面的 一个数据 是 underfind 没有值 自己查看什么问题，console.log() 看看哪一步没有拿到值了，或者自己的数据格式有没有写错写漏什么东西，错就是那一步，就思考那一步可能会出错的可能性
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