Python 错误：function 未在 class 中定义

Question

I'm just starting to learn python with a little background in Java and keep running into this error whenever I try to run my code. output and error message

Here are the methods I've wrote in this class. methods involved, aside from the very last one

I've checked multiple times and it isn't a spelling error. I don't understand why I'm not able to call one method in another from the same class.

Answer 1

For you to access methods within the same class, you have to use the word self .. And for that word to be valid, each method has to have it as its first parameter.

That is to say, you would have defined the above methods as follows::

def main(self): self.run()

then on run:: def run(self): #do your stuff down here

please do take into consideration the tabbing character of python as stackoverflow hasn't allowed me to do that, or I am less informed of how to do it

Answer 2

class Hello:

    def main(self):
        print("print")
        self.run()
    def run(self):
        print("run")

        
hello = Hello()

hello.main()

Thank you

Answer 3

You need to add self throughout the class, passing it to each method and using it when calling the methods and referring to variables.

class RPS:
    def main(self):
        print ("Let's play some RPS.")
        self.run()

    def run(self):
        self.compTurn()

    def compTurn(self):
        compRo11 = 1

        if compRo11 == 1:
            compRo11 = 'rock'
        elif compRo11 == 2:
            compRo11 = 'paper'  
        elif compRo11 == 3:
            compRo11 = 'scissors'

        print(compRo11)

    def usrTurn(self,compRo11):
        pass

rps = RPS()

rps.main()