硬币类硬件分配

Question

所以我正在为班级做一个投币类程序，而直接来自书中的这段代码在 Pycharm 和 VSC 中给了我错误。我已经重读了 10 次，找不到让程序运行的错误。试图弄清楚我是否遗漏了什么，或者示例源代码已关闭。

import random


# The Coin Class simulates a coin that can be flipped

class coin:
    def __init__(self):
        side.up = 'Heads'

    # Side up data attribute w/ heads

    # The Toss generates a random number in
    # the range of 0 - 1. If the number is 0, then side up is heads, otherwise side up is tails

    def toss(self):

        if random.randint(0, 1) == 0:
            self.sideup = 'Heads'
        else:
            self.sideup = 'Tails'

    # The get_sideup method returns the value referenced by sideup

    def get_sideup(self):
        return self.sideup

    # The main function


def main():
    # create an object from the coin class
    my_coin = coin()

    # Display that side facing up
    print('This side is up:', my_coin.get_sideup())

    # Toss Coin
    print('I am tossing the coin . . .')
    my_coin.toss()

    # Display the side of the coin that is facing up
    print('This side is up:', my_coin.get_sideup())

    # Call the main function
main()
``

Answer 1

您有一个变量 self 等于空，并且您正试图访问它的一个名为“up”的属性

    def __init__(self):
        side.up = 'Heads'