PyAutoGui TypeError：無法解壓不可迭代的NoneType object

Question

    import pyautogui
import cv2
import time
while(True):
    TradeFrom = pyautogui.locateCenterOnScreen("Screenshot_256.png", grayscale= True, confidence=0.9)
    TradeTo = pyautogui.locateCenterOnScreen("Screenshot_258.png", grayscale=True, confidence=0.9)
    if TradeFrom == None:
        if TradeTo == None:
           time.sleep(30)
           continue
        elif TradeTo != None:
           z,t=TradeFrom
           pyautogui.moveTo(z,t,3)
           pyautogui.rightClick()
           #TODO ÇOK YAPILACAK ŞEY VAR AMK
    else:
        x,y = TradeTo
        pyautogui.moveTo(x,y,3)
        pyautogui.rightClick()
        InviteToParty = pyautogui.locateCenterOnScreen("InviteToParty.png", grayscale= True, confidence=0.9)
        Invite_X,Invite_Y = InviteToParty
        pyautogui.moveTo(Invite_X,Invite_Y)

確切的 output：

Traceback (most recent call last):
  File "C:/Users/emosc/PycharmProjects/heuheu/main.py", line 12, in <module>
    z,t=TradeFrom
TypeError: cannot unpack non-iterable NoneType object

如果我將 TradeFrom 和 TradeTo 放在 while 循環之外，一切正常，誰能解釋為什么我把它放在 while 循環中后它會崩潰？

Answer 1

我認為您需要修復邏輯。 現在，您正在屏幕上尋找兩個對象。 您的聲明是說，如果未找到第一個 object 但第二個是，則從第一個 object 分配坐標...這是 None ，這就是您的代碼失敗的原因。 不確定預期的結果是什么，但也許試試這個：

import pyautogui
import cv2
import time
while(True):
    TradeFrom = pyautogui.locateCenterOnScreen("Screenshot_256.png", grayscale= True, confidence=0.9)
    TradeTo = pyautogui.locateCenterOnScreen("Screenshot_258.png", grayscale=True, confidence=0.9)
    if TradeFrom == None:
        if TradeTo == None:
           time.sleep(30)
           continue
        elif TradeTo != None:
           z,t=TradeTo
           pyautogui.moveTo(z,t,3)
           pyautogui.rightClick()
           #TODO ÇOK YAPILACAK ŞEY VAR AMK
    else:
        x,y = TradeFrom
        pyautogui.moveTo(x,y,3)
        pyautogui.rightClick()
        InviteToParty = pyautogui.locateCenterOnScreen("InviteToParty.png", grayscale= True, confidence=0.9)
        Invite_X,Invite_Y = InviteToParty
        pyautogui.moveTo(Invite_X,Invite_Y)

另外，我建議你在 break 鍵中編寫代碼，這樣很容易中斷這個循環