"AttributeError: 模块'cv2'没有属性'destoryWindow'"

Question

这是密码

img = cv2.imread('lena1.jpg')
b = img[:,:,0]
g = img[:,:,1]
r = img[:,:,2]
print(r.dtype)
emp = np.zeros(r.shape, dtype=np.uint8)
cv2.imshow("r", cv2.merge([emp, emp, r]))
if cv2.waitKey(0) & 0xFF == ord('q'):
   print ("I'm done")
cv2.destoryWindow("r")

我可以在模块cv2中找到destroyWindow的定义

谁能告诉我密码有什么问题吗？在