使用带正确类型推断的模式进行Python XML解析

import xml.etree.ElementTree as ET

# XML文档示例
xml_data = '''
<bookstore>
  <book category="cooking">
    <title lang="en">The Python Cookbook</title>
    <author>David Beazley</author>
    <year>2014</year>
    <price>29.99</price>
  </book>
  <book category="programming">
    <title lang="en">Python Crash Course</title>
    <author>Eric Matthes</author>
    <year>2015</year>
    <price>19.99</price>
  </book>
</bookstore>
'''

# 解析XML文档
root = ET.fromstring(xml_data)

# 遍历book元素
for book in root.findall('book'):
    # 获取元素的属性和文本内容
    category = book.get('category')
    title = book.find('title').text
    author = book.find('author').text
    year = int(book.find('year').text)
    price = float(book.find('price').text)

    # 打印解析结果
    print(f'Category: {category}')
    print(f'Title: {title}')
    print(f'Author: {author}')
    print(f'Year: {year}')
    print(f'Price: {price}\n')