装饰器缺少位置参数

Question

当我开始编译时，我的项目有问题。我收到装饰器缺少位置参数的错误。

def decorator(self,func):
    def decorate_it(*args,**kwargs):
        for ast in range(0,10):
            if ast==0 or ast==9:
                print("*"*10)
            elif ast==len(list(range(0,10)))//2:
                print("*  "+func()+"  *")
            else:
                print("*"+" "*(len(list(range(0,10)))-2)+"*")
@decorator
def selectTransaction(self,instc):
#instc=user/instance_user 
    while True:
        inputTransc=input("""
        What the transaction do you want ?
        (A)Withdraw money
        (B)Transfer
        (C)Check cash
        (D)E-money payment
        (E)cancel\n
        """)
        if inputTransc.upper()=="A" or inputTransc.upper()=="B":
            self.__script.write("{} is choosing \"Withdraw money\"\n".format(instc)) if inputTransc.upper(instc)=="A" else self.__script.write("{} is choosing \"Transfer\"\n".format(instc))
            return self.Withdrawmoney() if inputTransc.upper()=="A" else self.Transfer()
        elif inputTransc.upper()=="C" or inputTransc.upper()=="D":
            self.__script.write("{} is choosing \"Check cash\"\n".format(instc)) if inputTransc.upper(instc)=="B" else self.__script.write("{} is choosing \"emoney payment\"\n".format(instc))
            return self.CheckUserMoney() if inputTransc.upper()=="C" else self.emoneyPayment()
        elif inputTransc.upper()=="E":
            self.__script.write("{} is choosing \"cancel\"\n".format(instc))
            self.condATM=[False,True]
        else:
            pass

我不断收到错误

TypeError: decorator() 缺少 1 个必需的位置参数：'func'

Answer 1

def decorator(self,func) 应该只是 def decorator(func)。 decorator 应该从定义函数的类中移出。尤其是因为它甚至不使用 self。