元数据：详解XML编码、命名空间与DTD、Schema应用

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>酒店管理系统</title> <link rel="stylesheet" href="style.css"> </head> <body>

酒店管理系统

<main>

酒店客房管理

ID	类型	价格	编辑
1	单人房	¥200	<button class="edit-btn">编辑</button>
2	双人房	¥300	<button class="edit-btn">编辑</button>
3	豪华房	¥500	<button class="edit-btn">编辑</button>

添加客房

<form>

</main> <script src="script.js"></script> </body> </html>给代码逐行加上注释

<label for="room-price">价格：</label> <input type="number" id="room-price" required> </div> <button type="submit">添加</button>  </form> </div> </main> <script src=...

做个下面代码的样式：<template> <view> <view class="choose"> <view class="title">选择地址</view> <view class="user_info"> <view class="name-phone"><text>{{nickname}}</text><text>{{phone}}</text></view> <view class="address">{{address_detail}}</view> </view> </view> <view class="order-content"> <view class="product"> <view class="img"> <image :src="'http://localhost:3000/'+product.img" mode=""></image> </view> <view class="right-info"> <view class="product-name">黑糖拿铁</view> <view class="price-num"> <text>${{product.price}}</text> <text>x{{product.num}}</text> </view> </view> </view> <view class="num-allprice"> <text>共计{{product.num}}件商品</text> <text>订单金额：{{product.allPrice}}元</text> </view> </view> <button @click="pay">立即结算</button> </view> </template>

<text>订单金额：{{product.allPrice}}元</text> </view> </view> <button @click="pay">立即结算</button> </view> </template> <style> .choose { /* 样式 */ } .title { /* 样式 */ } .user_...

补充代码的样式：<template> <view> <view class="choose"> <view class="title">选择地址</view> <view class="user_info"> <view class="name-phone"><text>{{nickname}}</text><text>{{phone}}</text></view> <view class="address">{{address_detail}}</view> </view> </view> <view class="order-content"> <view class="product"> <view class="img"> <image :src="'http://localhost:3000/'+product.img" mode=""></image> </view> <view class="right-info"> <view class="product-name">黑糖拿铁</view> <view class="price-num"> <text>${{product.price}}</text> <text>x{{product.num}}</text> </view> </view> </view> <view class="num-allprice"> <text>共计{{product.num}}件商品</text> <text>订单金额：{{product.allPrice}}元</text> </view> </view> <button @click="pay">立即结算</button> </view> </template>

<text>订单金额：{{product.allPrice}}元</text> </view> </view> <button @click="pay">立即结算</button> </view> </template> <style> .choose { margin-bottom: 20px; padding: 10px; background-...

优化这段代码<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>图书购物车</title> <style> </style> <script src="js/vue.js"></script> </head> <body>

书籍名称出版日期价格购买数量操作

{{books1.name}} {{books1.date}} ¥{{books1.price}} <button @click="down(books1)">-</button>{{books4.count}}<button @click="up(books1)">+</button> <button @click="del">移除</button>

{{books2.name}} {{books2.date}} ¥{{books2.price}} <button @click="down(books2)">-</button>{{books4.count}}<button @click="up(books2)">+</button> <button @click="del">移除</button>

{{books3.name}} {{books3.date}} ¥{{books3.price}} <button @click="down(books3)">-</button>{{books4.count}}<button @click="up(books3)">+</button> <button @click="del">移除</button>

{{books4.name}} {{books4.date}} ¥{{books4.price}} <button @click="down(books4)">-</button>{{books4.count}}<button @click="up(books4)">+</button> <button @click="del">移除</button>

总价: ¥{{sum}}

<script> const vm = new Vue({ el: "#demo", data: { books1: { name: '《算法导论》', date: '2006-9', price: 85.00, count: 1 }, books2: { name: '《UNIX编程艺术》', date: '2006-2', price: 59.00, count: 1 }, books3: { name: '《编程珠玑》', date: '2008-10', price: 39.00, count: 1 }, books4: { name: '《代码大全》', date: '2006-3', price: 128.00, count: 1 } }, computed: { sum () { return this.books1.price * this.books1.count + this.books2.price * this.books2.count + this.books3.price * this.books3.count + this.books4.price * this.books4.count } }, methods: { down (books1) { this.books1.count = books1.count - 1; } } }) </script> </body> </html>

<td>¥{{book.price}}</td> <td> <button @click="down">-</button> {{book.count}} <button @click="up">+</button> </td> <td> <button @click="remove">移除</button> </td> </tr> ` }); const vm ...

找出这串代码的错误并给出正确答案<!DOCTYPE html> <?php $products = array( array("id"=>"1","name"=>"可可芭蕾","price"=>13.00), array("id"=>"2","name"=>"阿华田","price"=>17.00), array("id"=>"3","name"=>"冰淇淋红茶","price"=>8.00), array("id"=>"4","name"=>"百香三重奏","price"=>15.00) ); session_start(); $sum = 0; if(! empty($_SESSION['cart'])) { $order = $_SESSION['cart']; $sum = array_sum(array_column($order, "num")); } ?> <html> <head> <meta charset="UTF-8"> <link rel="stylesheet" type="text/css" href="css/style.css" /> <title>PHP购物</title> </head> <body>

商品列表

<?php foreach ($products as $key => $value);?> <?php endforeach;?>

商品名售价购物车
<?php echo $value['name'];?> ¥<?php echo $value['price'];?> +

我的购物车 <?php echo $sum;?>

</body> </html>

商品名	售价	购物车
<?php echo $value['name'];?>	¥<?php echo $value['price'];?>	+

>&price=<?php echo $value['price'];?>">+</a></td> </tr> <?php endforeach; ?> </table> <div> <a href="addCart.php?upd=cart">我的购物车</a> <span><?php echo $sum;?></span> </div> </div> ...

帮我补充这段代码<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>外卖订餐网站首页</title> <link rel="stylesheet" href="css/style.css"> </head> <body>

首页

菜单

关于我们

联系我们

推荐菜品

菜品名称

菜品描述
¥50

菜品名称

菜品描述
¥60

菜品名称

菜品描述
¥70

下单
<form> <label for="name">姓名</label> <input type="text" id="name"> <label for="phone">电话</label> <input type="tel" id="phone"> <label for="address">地址</label> <input type="text" id="address"> <label for="dish">菜品</label> <select id="dish"> <option value="1">菜品1</option> <option value="2">菜品2</option> <option value="3">菜品3</option> </select> <button type="submit">提交订单</button> </form>

©2021 外卖订餐网站. All Rights Reserved.

</body> </html>添加左边导航栏和广告浮动窗口，请给我html和css的源代码

<span class="price">¥50</span> </li> <li> <img src="dish2.jpg" alt="菜品图片"> <h3>菜品名称</h3> <p>菜品描述</p> <span class="price">¥60</span> </li> <li> <img src="dish3.jpg" alt="菜品...

<!DOCTYPE html> <html> <head> <meta charset="utf-8"/> <title></title> </head> <body> <script type="text/javascript"> function getPrice() { alert("getPrice()"); var prices =document.forms["tt"]["price"].value var prices =document.getElementById("price").value; var parr2=prices.split(","); var sum = 0; var len =parr2.length; for(var i=0;i<len;i++){ sum += parseInt(parr2[i]);} document.forms["tt"]["sum"].value=sum; } </script> 请输入5本书的价格，用逗号隔开

<input type="text" id="price"/> <input type="button" value="总计" οnclick="getPrice()"/> <input type="text" name="sum" value=""/> </body> </html>

找出这串代码的错误并给出正确答案<!DOCTYPE html> <?php session_start(); $order = $_SESSION['cart']; $sum = 0?> <html> <head> <meta charset="UTF-8"> <link rel="stylesheet" type="text/css" href="css/style.css" /> <title>PHP购物</title> </head> <body>

购物车

返回商品列表
<tbale> 商品名售价数量 <?php foreach($order as $key => $value):?> <?php echo $value['name'];?> ¥<?php echo $value['price'];?> - <?php echo $value['num'];?> + <?php endforeach;?> <form action="updCart.php" method="get"> <input type="submit" value="结算"> </form>
</body> </html>

1. 第7行应该是 `<table>` 而不是 `<tbale>`。 2. 在第15行，`$order` 可能未定义，应该在使用之前检查是否存在。 3. 在第16行，`$value` 可能未定义，应该在使用之前检查是否存在。 4. 在第16行，数组 `$value` ...

<template>

{{ msg }}

￥{{ price }}

<input type="number" v-model="num">
<button v-on:click="addToCart">加入购物车</button>

</template>这是GoodsDetail01，<template>

{{ msg }}

￥{{ price }}

<input type="number" v-model="num">
<button v-on:click="addToCart">加入购物车</button>

</template>这是GoodsDetail02，这是<template >

{{ product.name }}
￥{{ product.price }}

<component :is="currentComponent"></component>

</template>这是goodslist商品主页，实现goodslist点击跳转到GoodsDetail01和GoodsDetail02，请用动态组件实现跳转，写出vue.app和goodslist代码

<h4>￥{{ product.price }}</h4> </div> </div> </div> <component :is="currentComponent"></component> </div> </template> <script> import GoodsDetail01 from "./GoodsDetail01.vue"; import ...

热销推荐 更多优品 >

{{hot.bookId}}

￥{{hot.bookPrice}}

该代码控制台报错，显示vue.min.js:6 ReferenceError: hot is not defined，应该如何解决

该错误提示是因为在模板中使用了未定义的变量 hot。... <p class="price">￥{{hot.bookPrice}}</p> </a> </tr> </table> </div> </div> ``` 这样，就可以避免在 hotSellers 数组为空时出现未定义变量的错误了。

<input type="checkbox" name="" id="d" class="checkall">全选

删除选中的商品 清理购物车

已经选1件商品

总价：

去结算

改成组件，把父组件shop-cart

<div class="price-sum">总价： <em>{{ totalPrice }}</em></div> <div class="btn-area">去结算</div> </div> </div> </template> <script> export default { name: 'CartFloatBar', props: { ...

<input type="checkbox" name="" id="d" class="checkall">全选

删除选中的商品 清理购物车

已经选1件商品

总价：

去结算

帮我改成组件

<div class="price-sum">总价： <em>{{ totalPrice }}</em></div> <div class="btn-area">去结算</div> </div> </div> </template> <script> export default { name: 'CartFloatBar', props: { ...

<c:forEach var="ticket" items="${ticketList}"> </c:forEach>

机票编号起飞时间到达时间起飞地点到达地点价格选择

${ticket.ticketId} ${ticket.departureTime} ${ticket.arrivalTime} ${ticket.departurePlace} ${ticket.arrivalPlace} ${ticket.price} <input type="checkbox" name="selectedTickets" value="${ticket.ticketId}">

将此代码补充为完整的jsp页面代码

机票编号	起飞时间	到达时间	起飞地点	到达地点	价格	选择
${ticket.ticketId}	${ticket.departureTime}	${ticket.arrivalTime}	${ticket.departurePlace}	${ticket.arrivalPlace}	${ticket.price}	<input type="checkbox" name="selectedTickets" value="${ticket.ticketId}">