1.　　登录
通过login.html实现用户登录功能。
2.　　注册
通过signup.html实现用户注册功能。其中注册功能需要验证用户名是否已经被注册。
3.　　菜单列表
通过products.html显示菜单信息。
4.　　查询菜单
在index.html页面中有条件的搜索菜单。
5.　　下订单
在products.html鼠标悬浮在商品图片上，点击加入购物车可以挑选想要的菜品。确认点餐完毕可以点击购物车中的提交订单按钮完成订单查询。
6.订单查询
　　点击我的订单按钮可以在order.html查询登录用户的点餐订单。(1. Login

Login. html is used to realize user login function.

2. Registration

The user registration function is implemented by signup. html. The registration function needs to verify that the user name has been registered.

3. Menu list

Display menu information through products. html.

4. Query menu

A conditional search menu is available on the index. HTML page.

5. Place an order

The products. HTML mouse is hovering over the merchandise picture. Click on the add cart to select the dishes you want. After confirming the order, you can click the submit order button in the shopping cart to complete the order query.

6. Order query

Click on my order button to query the)