如何从含HTML span元素的列表中提取并转换价格数据？

原始输入的HTML列表：

[<span class="primary-price">$61,989</span>,
 <span class="primary-price">$21,905</span>,
 <span class="primary-price">$20,595</span>]

方案1：提取为数字格式（如 [61.989, 21.905, 20.595]） #

使用Python的BeautifulSoup解析HTML，提取价格后转换为目标数字格式：

from bs4 import BeautifulSoup

# 原始HTML内容
html = '''[<span class="primary-price">$61,989</span>,
 <span class="primary-price">$21,905</span>,
 <span class="primary-price">$20,595</span>]'''

# 解析并提取价格文本
soup = BeautifulSoup(html, 'html.parser')
price_strings = [span.text for span in soup.find_all('span', class_='primary-price')]

# 转换为带小数点的数字格式（替换逗号为小数点，去掉$符号）
prices = [float(price.replace('$', '').replace(',', '.')) for price in price_strings]

print(f"prices = {prices}")

执行结果：

prices = [61.989, 21.905, 20.595]

方案2：保留原始价格格式（如 [$61,989, $21,905, $20,595]） #

如果只需要提取原始格式的价格字符串，直接提取文本即可：

from bs4 import BeautifulSoup

html = '''[<span class="primary-price">$61,989</span>,
 <span class="primary-price">$21,905</span>,
 <span class="primary-price">$20,595</span>]'''

soup = BeautifulSoup(html, 'html.parser')
prices = [span.text for span in soup.find_all('span', class_='primary-price')]

print(f"prices = {prices}")

执行结果：

prices = ['$61,989', '$21,905', '$20,595']

内容的提问来源于stack exchange，提问作者deagle