实现功能：新增/删除 学生
<html> <head> <script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script> </head> <body> <div id="app"> <fieldset> <legend>学生信息新增</legend> <div> <span>姓名</span> <input type="text" v-model="newStudent.name" placeholder="please input your name"></div> <div> <span>年龄</span> <input type="text" v-model="newStudent.age" placeholder="please input your age"></div> <div> <span>性别</span> <select v-model="newStudent.sex"> <option value="男">男</option> <option value="女">女</option></select> </div> <button @click="insert()">添加</button></fieldset> <table> <thead> <tr> <th>姓名</th> <th>年龄</th> <th>性别</th> <th>操作</th></tr> </thead> <tbody> <tr v-for="(st, index) in students"> <td>{{st.name}}</td> <td>{{st.age}}</td> <td>{{st.sex}}</td> <td> <button @click="del(index)">Delete</button></td> <td></td> </tr> </tbody> </table> </div> <script>new Vue({ el: '#app', data: { students: [{ name: '张三', age: 12, sex: '男' }, { name: '李四', age: 14, sex: '女' }, { name: '王五', age: 15, sex: '男' }, ], newStudent: { name: '', age: 0, sex: '男' } }, methods: { insert() { this.students.unshift(this.newStudent) //重置表单数据 this.newStudent = { name: '', age: 0, sex: '男' } }, del(index) { this.students.shift(index, 1) } } })</script> </body> </html>