model.config.id2label = {id: label for label, id in label2id.items()} model.config.label2id = label2id
时间: 2023-12-27 12:23:21 浏览: 31
这是一个Python代码段,用于将标签列表转换为标签ID字典和标签字典。其中,label2id是一个标签到ID的映射字典。下面是代码段的解释:
```python
model.config.id2label = {id: label for label, id in label2id.items()}
```
这行代码将标签ID字典初始化为一个字典,其中键是标签ID,值是标签名称。它使用了Python的字典推导式,将label2id字典中的每个键值对反转,并将结果存储在id2label字典中。
```python
model.config.label2id = label2id
```
这行代码将标签字典初始化为label2id字典,其中键是标签名称,值是标签ID。
相关问题
java:邮箱配置,点击配置,弹出弹窗,弹窗中可以对邮箱输入框进行动态的增加和删除,并且可以回显配置的邮箱,通过easyui+ssm实现前后端具体代码
好的,下面是Java邮箱配置的前后端代码实现。其中,前端使用了easyui框架,后端使用了SSM框架。
前端代码:
HTML部分:
```html
<div class="form-group">
<label class="col-sm-2 control-label">邮箱配置:</label>
<div class="col-sm-10">
<div class="config-email-container"></div>
<a href="#" class="btn btn-success btn-add-email" style="margin-top: 10px;">添加邮箱</a>
</div>
</div>
```
JS部分:
```javascript
$(function() {
// 初始化邮箱配置
var emails = ["example1@domain.com", "example2@domain.com"];
for (var i = 0; i < emails.length; i++) {
addEmail(emails[i]);
}
// 添加邮箱按钮的点击事件
$(".btn-add-email").click(function() {
addEmail("");
});
// 添加邮箱的函数
function addEmail(email) {
var container = $(".config-email-container");
var row = $("<div>").addClass("row");
var col = $("<div>").addClass("col-sm-10 col-sm-offset-2");
var input = $("<input>").attr("type", "text").attr("name", "emails").addClass("form-control").val(email);
var btnRemove = $("<a>").attr("href", "#").addClass("btn btn-danger btn-remove-email").text("删除邮箱");
col.append(input).append(btnRemove);
row.append(col);
container.append(row);
}
// 删除邮箱按钮的点击事件
$(".config-email-container").on("click", ".btn-remove-email", function() {
$(this).closest(".row").remove();
});
});
```
后端代码:
Java部分:
```java
@Controller
@RequestMapping("/email")
public class EmailController {
@RequestMapping("/config")
public String configEmail(Model model) {
model.addAttribute("emails", new ArrayList<String>());
return "email/config";
}
@RequestMapping(value = "/save", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> saveEmail(@RequestParam("emails[]") List<String> emails) {
// TODO: 保存邮箱配置
Map<String, Object> result = new HashMap<String, Object>();
result.put("success", true);
return result;
}
}
```
XML部分:
```xml
<!-- 配置MyBatis的SQL映射文件 -->
<mapper namespace="com.example.mapper.EmailMapper">
<insert id="insertEmails">
INSERT INTO email (address)
VALUES
<foreach collection="emails" item="email" separator=",">
(#{email})
</foreach>
</insert>
</mapper>
```
JSP部分:
```jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<form:form method="post" action="/email/save">
<div class="form-group">
<label class="col-sm-2 control-label">邮箱配置:</label>
<div class="col-sm-10">
<div class="config-email-container">
<c:forEach items="${emails}" var="email">
<div class="row">
<div class="col-sm-10 col-sm-offset-2">
<form:input path="emails" cssClass="form-control" value="${email}" />
<a href="#" class="btn btn-danger btn-remove-email">删除邮箱</a>
</div>
</div>
</c:forEach>
</div>
<a href="#" class="btn btn-success btn-add-email" style="margin-top: 10px;">添加邮箱</a>
</div>
</div>
<div class="form-group">
<div class="col-sm-10 col-sm-offset-2">
<button type="submit" class="btn btn-primary">保存</button>
</div>
</div>
</form:form>
```
基于python的点餐系统设计与实现代码
抱歉,由于基于Python的点餐系统的实现涉及到很多细节和功能模块,无法在一个回答中展示完整的代码。但是,我可以给您提供一些实现的思路和代码片段,希望对您有所帮助。
1. 使用Flask框架搭建后端服务器:
```python
from flask import Flask, render_template, request
from flask_sqlalchemy import SQLAlchemy
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://username:password@localhost/databasename'
db = SQLAlchemy(app)
class Menu(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(100))
price = db.Column(db.Float)
category = db.Column(db.String(50))
class Order(db.Model):
id = db.Column(db.Integer, primary_key=True)
customer_name = db.Column(db.String(100))
customer_phone = db.Column(db.String(20))
order_items = db.relationship('OrderItem', backref='order')
class OrderItem(db.Model):
id = db.Column(db.Integer, primary_key=True)
order_id = db.Column(db.Integer, db.ForeignKey('order.id'))
menu_id = db.Column(db.Integer, db.ForeignKey('menu.id'))
quantity = db.Column(db.Integer)
@app.route('/')
def index():
menus = Menu.query.all()
return render_template('index.html', menus=menus)
@app.route('/order', methods=['POST'])
def order():
customer_name = request.form['customer_name']
customer_phone = request.form['customer_phone']
order_items = []
for menu_id, quantity in request.form.items():
if menu_id.isdigit() and int(quantity) > 0:
menu = Menu.query.get(menu_id)
order_items.append(OrderItem(menu=menu, quantity=quantity))
order = Order(customer_name=customer_name, customer_phone=customer_phone, order_items=order_items)
db.session.add(order)
db.session.commit()
return 'Order placed successfully!'
```
2. 使用Bootstrap实现前端网页界面的设计:
```html
<!DOCTYPE html>
<html>
<head>
<title>Menu</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<h1>Menu</h1>
<form method="POST" action="/order">
<table class="table">
<thead>
<tr>
<th>Name</th>
<th>Price</th>
<th>Quantity</th>
</tr>
</thead>
<tbody>
{% for menu in menus %}
<tr>
<td>{{ menu.name }}</td>
<td>{{ menu.price }}</td>
<td><input type="number" name="{{ menu.id }}"></td>
</tr>
{% endfor %}
</tbody>
</table>
<div class="form-group">
<label for="customer_name">Name:</label>
<input type="text" class="form-control" id="customer_name" name="customer_name" required>
</div>
<div class="form-group">
<label for="customer_phone">Phone:</label>
<input type="text" class="form-control" id="customer_phone" name="customer_phone" required>
</div>
<button type="submit" class="btn btn-primary">Order</button>
</form>
</div>
</body>
</html>
```
以上是基于Python的点餐系统的一些实现思路和代码片段,希望对您有所帮助。若您需要更详细的代码实现或有任何问题,欢迎随时向我提问。