看我原先的代碼：
運行出現的錯誤
解決辦法
修改完成之后問題就解決了嘻嘻嘻......
因為我在main.js是用如下的方式引入axios的
所以在vue頁面使用的時候就用 $axios 來調用
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Vue（踩坑）vue.esm.js?efeb:628 [Vue warn]: Error in render: "TypeError: Cannot read property 'length' of undefined" found in
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Vue（踩坑）vue.esm.js?efeb:628 [Vue warn]: Error in render: "TypeError: Cannot read property '0' of undefined" found in
at src/components/ShopList/ShopList.vue
at s">
vuex(報錯）_vue.esm.js?efeb:628 [Vue warn]: Error in render: "TypeError: Cannot read property 'length' of undefined" found in --->
at src/components/ShopList/ShopList.vue
at s
vue.esm.js?efeb:628 [Vue warn]: Failed to mount component: template or render function not defined. found in --->
at src/App.vue
vue vue.esm.js?efeb:628 [Vue warn]: v-bind without argument expects an Object or Array value
vue.esm.js?efeb:591 [Vue warn]: Invalid prop: type check failed for prop "data". Expected Array, got String.
解決：vue.esm.js?efeb:628 [Vue warn]: Do not use built-in or reserved HTML elements as component id: heade
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