我有一個TextBox和一個Button。當用戶點擊時，我希望點擊Enter與相關的特定按鈕。并且是類。我將實例傳遞到 中，以便我們知道應該單擊一個實例。是一個有 2 個方法和的類。TextBoxTextBoxButtonButtonTextBoxButtonclick()autoclick()我想要的是autoclick()檢查是否Enter按下了鍵，如果按下則click()返回。True我嘗試使用裝飾器并編寫了這個玩具程序來演示我的嘗試。class Button: def click(self): return False def autoclick(self, func, *args): def wrapper(): func(*args)# This function needes events as it argumnet return True return wrapperb = Button()class TextBox: def __init__(self, button=None): self.button = button def box(self): if enterPressed: if self.button is not None: self.button.autoclick(self.button.click, events)()tb = TextBox(button=b)while True: tb.box() if b.click(): print("this needs to be printed when user hits enter")我沒有收到任何錯誤，但它根本不起作用。
2 回答
撒科打諢
TA貢獻1934條經驗 獲得超2個贊
我想我現在可能知道你想做什么了。
試試這個。這就是我們通常使用裝飾器的方式。
class Button:
@autoclick # this is how decorators are used.
def click(self):
return False
def autoclick(self, func):
def wrapper(*args):
func(*args)# This function needes events as it argumnet
return True
if enterPressed:
return wrapper
else:
return func
慕的地10843
TA貢獻1785條經驗 獲得超8個贊
我認為以下部分需要修改
class TextBox:
def __init__(self, button=None):
self.button = button
def box(self):
if enterPressed:
if self.button is not None:
self.button.autoclick(self.button.click, events)()
類似于：
class TextBox:
def __init__(self, button=None):
self.button = button
def box(self):
if enterPressed:
if self.button is not None:
self.button.click = self.button.autoclick(self.button.click) # this line is changed
更新
我想也許你應該是這樣的意思：
class Button:
def _click(self): # Maybe this method have events as parameters?
return False
def click(self):
return self._click()
def autoclick(self):
def wrapper(*args):
self._click(*args) # This function needs events as it arguments
self.click = self._click
return True
self.click = wrapper
class TextBox:
def __init__(self, button=None):
self.button = button
def box(self):
if enterPressed:
if self.button is not None:
self.button.autoclick()
或者也許是這個？:
class Button:
def _click(self): # Maybe this method have events as parameters?
return False
def click(self):
return self._click()
def autoclick(self):
def wrapper(*args):
result = self._click(*args) # This function needs events as it arguments
if enterPressed:
return True
return result
self.click = wrapper
class TextBox:
def __init__(self, button=None):
self.button = button
def box(self):
if self.button is not None:
self.button.autoclick()
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