python之子类继承父类时进行初始化的一些问题
https://www.cnblogs.com/xiximayou/p/12142888.html
装饰器的一些知识点
https://www.runoob.com/w3cnote/python-func-decorators.html
# 装饰器类
from functools import wraps
class logit(object):
def __init__(self, logfile='out.log'):
self.logfile = logfile
def __call__(self, func):
@wraps(func)
def wrapped_function(*args, **kwargs):
log_string = func.__name__ + " was called"
print(log_string)
# 打开logfile并写入
with open(self.logfile, 'a') as opened_file:
# 现在将日志打到指定的文件
opened_file.write(log_string + '\n')
# 现在,发送一个通知
self.notify()
return func(*args, **kwargs)
return wrapped_function
def notify(self):
# logit只打日志,不做别的
pass
# 装饰器子类
class email_logit(logit):
'''
一个logit的实现版本,可以在函数调用时发送email给管理员
'''
def __init__(self, email='admin@myproject.com', *args, **kwargs):
self.email = email
super(email_logit, self).__init__(*args, **kwargs)
def notify(self):
# 发送一封email到self.email
# 这里就不做实现了
pass
子类重写父类的几种方法
https://blog.youkuaiyun.com/weixin_43229819/article/details/100527459