将上述代码解决AttributeError: 'NoneType' object has no attribute 'find_all'问题后的正确代码输出

如果在处理过程中遇到`AttributeError: 'NoneType' object has no attribute 'find_all'`的问题，说明`poem`可能是`None`，这意味着当前迭代的位置可能没有找到预期的诗歌。在这种情况下，你需要先检查`poem`是否存在再继续操作。以下是修改后的代码：

import requests
from bs4 import BeautifulSoup
import pandas as pd

url = "https://so.gushiwen.cn/gushi/tangshi.aspx"

response = requests.get(url)
response.raise_for_status()

soup = BeautifulSoup(response.text, 'html.parser')
poems_list = soup.find('div', class_='list poems')

data = {
    '标题': [],
    '作者': [],
    '朝代': [],
    '正文': []
}

for poem in poems_list:
    if poem and poem.name == 'div' and 'poem' in poem['class']:
        title = poem.h3.text.strip() if poem.h3 else ""
        author = poem.p.find('span', {'class': 'author'}).text.strip() if poem.p and poem.p.find('span', {'class': 'author'}) else ""
        dynasty = poem.p.find('span', {'class': 'time'}).text.strip() if poem.p and poem.p.find('span', {'class': 'time'}) else ""

        try:
            content = poem.find('p').text.strip() if poem.find('p') else ""
        except AttributeError:
            content = ""

        data['标题'].append(title)
        data['作者'].append(author)
        data['朝代'].append(dynasty)
        data['正文'].append(content)

df = pd.DataFrame(data)
df.to_csv("古诗词.csv", index=False)

print("数据已成功保存到CSV文件。")