关于vue3:vue3x-使用-globalProperties-全局变量

Vue3.x 用 Composition API 中是没有this的，所以不能间接应用 this 调用 globalProperties 全局变量

Composition API 应用办法

// main.jsimport { createApp } from 'vue'import App from './App.vue'import storage from './plugins/storage'const app = createApp(App);app.config.globalProperties.$storage = storageapp.provide('$storage', storage)app.mount('#app')// Home.vueimport {inject} from "vue"const storage = inject('$storage')storage.setItme('name','zhangsan')

Vue2.x 的应用办法

// main.jsimport { createApp } from 'vue'import App from './App.vue'import storage from './plugins/storage'const app = createApp(App);app.config.globalProperties.$storage = storageapp.mount('#app')// Home.vuethis.$storage.setItme('name','zhangsan')