问题描述：

测试requests库，抓了一张百度的logo，在文件写入的时候报了权限不够的错

import requests
response = requests.get('https://www.baidu.com/img/bd_logo1.png')
print(response.content)
with open('C:/baidu.png', 'wb') as f:
    f.write(response.content)
    f.close()

Traceback (most recent call last):
  File "D:/PycharmProjects/untitled/test.py", line 42, in <module>
    with open('C:/baidu.png', 'wb') as f:
PermissionError: [Errno 13] Permission denied: 'C:/baidu.png'

解决方法：

• 在当前项目下保存

with open('baidu.png', 'wb') as f:
    f.write(response.content)
    f.close()

• 在非系统盘下保存

with open('D:/baidu.png', 'wb') as f:
    f.write(response.content)
    f.close()

• ubuntu系统中给文件夹开放权限