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1. 引用vue.js
<!doctype html> <html> <head> <script src="http://vuejs.org/js/vue.js"></script> <meta charset="utf-8"> <title>js bin</title> </head> <body> <div id="root"> <input type="text" v-model="inputvalue"> <button @click="handleradd">提交</button> <ul> <li v-for="(item,index) of lists" :key="index" @click="handlerdel(index)" > {{item}} </li> </ul> </div> <script> new vue({ el: '#root', data: { inputvalue: '', lists: [] }, methods: { handleradd: function() { this.lists.push(this.inputvalue); this.inputvalue = ''; }, handlerdel: function(index) { this.lists.splice(index, 1); } } }); </script> </body> </html>
2. 全局组件注册
<!doctype html> <html> <head> <script src="http://vuejs.org/js/vue.js"></script> <meta charset="utf-8"> <title>js bin</title> </head> <body> <div id="root"> <input type="text" v-model="inputvalue"> <button @click="handleradd">提交</button> <ul> <todo-item v-for="(item,index) of lists" :content = "item" :index = "index" :key = "index" @delete="handlerdel" > </todo-item> </ul> </div> <script> vue.component('todoitem', { props: { content: string, index: number }, template: '<li @click="handlerclick">{{content}}</li>', methods: { handlerclick: function(){ this.$emit('delete', this.index); } } }); new vue({ el: '#root', data: { inputvalue: '' , lists: [] }, methods: { handleradd: function() { this.lists.push(this.inputvalue); this.inputvalue = ''; }, handlerdel: function(index) { this.lists.splice(index,1); } } }); </script> </body> </html>
3. vue-cli脚手架
// todo.vue <template> <div> <input type="text" v-model="inputvalue"> <button @click="handleradd">提交</button> <ul> <todo-item v-for="(item,index) of lists" :key="index" :content="item" :index="index" @delete="handlerdel" ></todo-item> </ul> </div> </template> <script> import todoitem from './components/todoitem' export default { data () { return { inputvalue: '', lists: [] } }, methods: { handleradd () { this.lists.push(this.inputvalue) this.inputvalue = '' }, handlerdel (index) { this.lists.splice(index, 1) } }, components: { 'todo-item': todoitem } } </script> <style> </style> // todoitem.vue <template> <li @click="handlerclick" class="item">{{content}}</li> </template> <script> export default { props: ['content', 'index'], methods: { handlerclick () { this.$emit('delete', this.index) } } } </script> <style scoped> ul,li { list-style: none; } .item { color: blueviolet; } </style>
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