import mss,cv2

face = mss.mss()

#face.grab()
# rect = dict(top=0,bottom=200,left=0,right=200)
# rect = (200,200,400,800)
# img = face.grab(rect)
# name = 'a.jpg'
# mss.tools.to_png(img.rgb,img.size,6,name)

#face.shor()
# b = face.shot() #可行
# print(b)
# img = cv2.imread(b)
# cv2.imshow('',img)
# cv2.waitKey(0)

# face.save()

c = next(face.save(mon=1))
img = cv2.imread(c)
cv2.imshow('',img)
cv2.waitKey(0)

face.close()