安裝和使用
全局安裝vue
npm install --global vue-cli
創建基於webpack模板的新項目
vue init webpack my-project
安裝依賴
cd my-project npm run dev
測試代碼
父組件可以通過屬性的方式向子組件傳值,:content
App.vue
<template> <div> <div> <input v-model="inputValue"/> <button @click="handleSubmit">提交</button> </div> <ul> <todo-item v-for="(item,index) of list" :key="index" :content="item" :index="index" @delete="handleDelete"></todo-item> </ul> </div> </template> <script> import TodoItem from './components/TodoItem.vue' export default { components: { 'todo-item': TodoItem }, data () { return { inputValue: '', list: [] } }, methods: { handleSubmit () { this.list.push(this.inputValue) this.inputValue = '' }, handleDelete (e) { // delete this.list[e] this.list.splice(e, 1) } } } </script> <style> </style>
components/TodoList.vue,子組件可以通過this.$emit向父組件傳遞事件
<template> <div @click="handleClick">{{content}}</div> </template> <script> export default { props: ['content', 'index'], methods: { handleClick () { this.$emit('delete', this.index) } } } </script> <style scoped> </style>
全局樣式與局部樣式
scoped起限制作用域的作用