类型错误TypeError: 'NoneType' object is not subscriptable怎么解决？

Question

原本是想用AutoPyGUI写一个健康打卡脚本的，遇到如下错误。

源程序：

import pyautogui

pyautogui.click(x=1850, y=285)  #移动鼠标，然后点击
pyautogui.click(clicks=2, interval=0.25)    #双击，间隔秒数

import pyscreeze
# im1 = pyscreeze.screenshot()
# im2 = pyscreeze.screenshot('my_screenshot.png')
# for i in pyautogui.locateAllOnScreen('HKU.png'):
# list(pyautogui.locateAllOnScreen('HKU.png'))
# pyautogui.locateOnScreen('looksLikeThis.png')
pyautogui.screenshot('HKU.png')  # returns a Pillow/PIL Image object, and saves it to a file
# <PIL.Image.Image image mode=RGB size=1920x1080 at 0x31AA198>

buttonlocation = pyautogui.locateOnScreen('D:\VScode\HKU.png')
# buttonlocation = pyautogui.locateOnScreen('D:\VScode\微服务.png')
# buttonlocation = pyautogui.locateOnScreen('D:\VScode\服务平台.png')
# buttonlocation = pyautogui.locateOnScreen('D:\VScode\健康打卡.png')
# pyautogui.scroll(-10)  # scroll down 10 "clicks"

# buttonlocation = pyautogui.locateOnScreen('D:\VScode\更改.png')

# # pyautogui.scroll(-10)  # scroll down 10 "clicks"

# buttonlocation = pyautogui.locateOnScreen('D:\VScode\确认.png')

# # pyautogui.scroll(-10)  # scroll down 10 "clicks"

# # pyautogui.write('36.3', interval=0.25)  # prints out "Hello world!" with a quarter second delay after each character

# buttonlocation = pyautogui.locateOnScreen('D:\VScode\提交.png')
# buttonlocation = pyautogui.locateOnScreen('D:\VScode\确认2.png')
# buttonlocation = pyautogui.locateOnScreen('D:\VScode\确认2.png')
buttonpoint = pyautogui.center(buttonlocation)
buttonx, buttony = buttonpoint
pyautogui.click(buttonx, buttony)  

提示错误：

```python
Traceback (most recent call last):
  File "d:\VScode\AutoHKU.py", line 34, in <module>
    buttonpoint = pyautogui.center(buttonlocation)
  File "C:\Users\（用户名）\AppData\Local\Programs\Python\Python39\lib\site-packages\pyscreeze\__init__.py", line 582, in center
    return Point(coords[0] + int(coords[2] / 2), coords[1] + int(coords[3] / 2))
TypeError: 'NoneType' object is not subscriptable

类型错误：“空类型”目标不是下标，但代码行没有下标啊。

Answer 1

• 你可以参考下这个问题的回答, 看看是否对你有帮助, 链接: https://ask.csdn.net/questions/7609121
• 这篇博客你也可以参考下：TypeError: NoneType object is not subscriptable 方案解决
• 这篇博客也不错, 你可以看下TypeError: NoneType object is not subscriptable 方案解决