基于Vue实现图书管理功能

<table class="table table-bg table-border table-bordered">
 <tr>
 <th>ID</th>
 <th>书名</th>
 <th>作者</th>
 <th>价格</th>
 <th>操作</th>
 </tr>
 <tr v-for="(book,index) in books">
 <td>{{book.id}}</td>
 <td>{{book.name}}</td>
 <td>{{book.author}}</td>
 <td>{{book.price}}</td>
 <td>
 <button class="btn" @click="delBook(index)">删除</button>
 </td>
 </tr>
</table>

<fieldset>
 <legend>添加新书</legend>
 <p>书名：<input type="text" v-model="newBook.name"></p>
 <p>作者：<input type="text" v-model="newBook.author"></p>
 <p>价格：<input type="text" v-model="newBook.price"></p>
 <p><button class="btn" @click="addBook">添加</button></p>
</fieldset>

<script>
new Vue({
 el:'#books',
 data:{
 books:[
 {id:1, name:'红楼梦', author:'曹雪芹', price:'1'},
 {id:2, name:'西游记', author:'吴承恩', price:'2'},
 {id:3, name:'水浒传', author:'施耐庵', price:'3'}
 ],
 newBook:{
 id:0,
 name:'',
 author:'',
 price:''
 }
 },
 methods:{
 delBook:function(idx){
 if(window.confirm('确认要删除？')){
 this.books.splice(idx, 1);
 }

 },
 addBook:function(){
 // 约束
 if(this.newBook.name.length == 0) {
 alert('书名不能为空');
 return;
 } 

 if(this.newBook.author.length == 0){
 alert('书的作者不能为空');
 return;
 }

 if(this.newBook.price.length == 0){
 this.newBook.price = '0'
 } 

 // 计算插入id
 var maxId = 0;
 for(var i=0; i<this.books.length; i++){
 if(maxId<this.books[i].id){
 maxId = this.books[i].id;
 }
 }
 this.newBook.id = maxId+1;

 // 插入到 books中
 this.books.push(this.newBook);

 // 清空新书
 this.newBook = {};
 }
 }
});
</script>