import xml.etree.ElementTree as ET
from xml.dom import minidom
<p>def create_rss_feed():</p><h1>创建根元素</h1><pre class='brush:php;toolbar:false;'>rss = ET.Element('rss', version='2.0')
channel = ET.SubElement(rss, 'channel')

# 添加频道信息
ET.SubElement(channel, 'title').text = '我的技术博客'
ET.SubElement(channel, 'link').text = 'https://example.com'
ET.SubElement(channel, 'description').text = '分享Python与Web开发经验'

# 添加文章条目
item1 = ET.SubElement(channel, 'item')
ET.SubElement(item1, 'title').text = '如何用Python生成RSS'
ET.SubElement(item1, 'link').text = 'https://example.com/post1'
ET.SubElement(item1, 'description').text = '本文介绍使用ElementTree生成RSS的方法。'

item2 = ET.SubElement(channel, 'item')
ET.SubElement(item2, 'title').text = 'Python中的XML处理'
ET.SubElement(item2, 'link').text = 'https://example.com/post2'
ET.SubElement(item2, 'description').text = '解析与生成XML的实用技巧。'

# 转换为字符串并美化输出
rough_string = ET.tostring(rss, 'utf-8')
reparsed = minidom.parseString(rough_string)
return reparsed.toprettyxml(indent="  ")

desc = '<![CDATA[<p>这是一段带格式的内容</p><a href="...">链接</a>]]>'
ET.SubElement(item, 'description').text = desc