Traceback (most recent call last): File "D:\2212406121017fzh\main.py", line 6, in <module> html = requests.get(url,headers=header) File "D:\Anaconda3\lib\site-packages\requests\api.py", line 73, in get return request("get", url, params=params, **kwargs) File "D:\Anaconda3\lib\site-packages\requests\api.py", line 59, in request return session.request(method=method, url=url, **kwargs) File "D:\Anaconda3\lib\site-packages\requests\sessions.py", line 573, in request prep = self.prepare_request(req) File "D:\Anaconda3\lib\site-packages\requests\sessions.py", line 484, in prepare_request p.prepare( File "D:\Anaconda3\lib\site-packages\requests\models.py", line 369, in prepare self.prepare_headers(headers) File "D:\Anaconda3\lib\site-packages\requests\models.py", line 489, in prepare_headers for header in headers.items(): AttributeError: 'set' object has no attribute 'items' 进程已结束,退出代码1

根据您提供的信息，看起来是您在使用requests库时出现了错误。根据错误信息，代码中的headers应该是一个set对象，而不是一个dict对象，所以出现了'AttributeError: 'set' object has no attribute 'items''的错误。

您可以尝试将headers改为一个dict对象，例如：

import requests

url = 'http://example.com/api'
headers = {'User-Agent': 'Mozilla/5.0'}

response = requests.get(url, headers=headers)

print(response.text)

在这个例子中，我们使用了一个包含User-Agent头的headers字典。请确保headers是一个dict对象，并且您的请求URL有效。