Python 3.xx：类中的类

Question

我的 python 脚本需要帮助。如何通过 Date 的类访问我的时钟功能？

from datetime import date
from datetime import datetime

class Date(object):
    def date_today(self):
        now = date.today()
        print (now)

class Time(Date):
    pass
    def clock(self):
        hr = datetime.now()
        hr_now = hr.hour
        print (hr_now)

cr_date = Date()
print (cr_date.date_today())
print (cr_date.date_today.clock())

我收到一个错误 --> AttributeError: 'function' object has no attribute 'clock'。这个错误的原因是什么？

Answer 1

您还可以在时间类中添加分钟、秒和其他相关功能。我希望它会有所帮助。

from datetime import date
from datetime import datetime

class Time():
    def clock(self):
        hr = datetime.now()
        hr_now = hr.hour
        return hr_now

class Date():
    def __init__(self):
        self.time = Time()

    def date_today(self):
        now = date.today()
        return now

    def clock(self):
        return self.time.clock()




cr_date = Date()

print(cr_date.date_today())
print(cr_date.clock())