错误处理：TypeError: destroyWindow() missing required argument ‘winname‘ (pos 1)的详细讲解

今天，运行代码出现了一个这样的TypeError: destroyWindow() missing required argument 'winname' (pos 1)错误，从字面的意思看，是destroyWindow()函数缺少必要的’winname’参数。其实就是最后，下面代码最后一行中括号，缺少毁掉窗口的名称。

import cv2 as cv
from PIL import Image
import numpy as npimage = Image.open('liuyifei.jpg')img_crop = image.crop((460, 460, 920, 920))img = np.array(img_crop)
cv.imshow('img_crop', img)cv.waitKey(10000)
cv.destroyWindow()

报错：

D:\anaconda\python.exe "D:/my test project/blur_7.23/test_8.19/imageCopy.py"
Traceback (most recent call last):File "D:/my test project/blur_7.23/test_8.19/imageCopy.py", line 20, in <module>cv.destroyWindow()
TypeError: destroyWindow() missing required argument 'winname' (pos 1)

修改后：

cv.waitKey(10000)
cv.destroyWindow('img_crop')

代码正确运行，结果如下：

D:\anaconda\python.exe "D:/my test project/blur_7.23/test_8.19/imageCopy.py"Process finished with exit code 0

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错误处理：TypeError: destroyWindow() missing required argument ‘winname‘ (pos 1)的详细讲解

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