# daily tasks have to be done habits have to be developed
# some things are better when done at night
# procrastination and think for ten minutes
# enjoy the boredom struggle hard persistence is triumph
# 2022/9/5 13:18
import time
# sj=time.localtime()
# print(sj)
# print(time.time()) 当前时间的时间戳
#print(time.strftime('%Y %m %d %H %M %S',time.localtime()))
print(time.strftime('%H %M'))
#s t r f t i m e应该是string format（格式化）time的缩写
import datetime
# print(datetime.date.today()) #返回当天日期
# print(datetime.date.fromtimestamp(time.time()))#根据时间戳来返回当天时间
# print(datetime.date.min) #0001-01-01 max:9999-12-31
#print(datetime.date.today().timetuple())
# t=datetime.time(10,9,8)
# print(t.isoformat())
# print('------------------')
# print(t.strftime('%I %M %S %p'))
# print('------------------')
# print(t.replace(hour=2,minute=3))
# print('------------------')
# print(t.hour)
#import calendar
from calendar import Calendar
#print(calendar.isleap(2022))
# c=Calendar()
# print(list(c.iterweekdays()))
# for i in c.itermonthdates(2020,2):
# print(i)
# from calendar import HTMLCalendar
# hc=HTMLCalendar()
# print(hc.formatmonth(2019,2))
# print(hc.formatyearpage(2022))
# class cat:
# def __init__(self,name):
# self.name=name
# def eat(self, food):
# self.food=food
# print(self.name, '正在吃'+food)
# color='black'
# c=cat('tom')
# c.eat('yu')
# print(cat.color)
# class cat:
# breed='garfield'
# def __eun(self,temperament):
# print(self.breed+'猫的性情'+temperament)
# def temper(self,temperament):
# self.__eun(temperament)
# sc=cat()
# sc.temper('懒')
# class persiancat(cat):
# breed='persian'
# def __init__(self,color):
# print(self.breed + '是' + color + '的')
# def colors(self,color):
# self.color=color
# class garfieldcat(cat):
# def __init__(self,speed):
# self.speed=speed
# def run(self,speed):
# print(self.breed+'的速度'+speed+'迈')
# p=persiancat('黑白')
# g=garfieldcat('50')
# p.colors('黑')
# g.run('70')
# class singcat(garfieldcat):
# pass
# class multicat(garfieldcat,persiancat):
# pass
# sc=singcat('波斯猫1')
# sc.run('20')
# mc=multicat('渣中')
# mc.run('30')
# mc.colors('白')
# open('D:\\code\\day1\\asdf.txt',mode='r',buffering=-1,newline=None,errors=None,closefd=True,opener=None)
# wf=open('D:\\code\\day1\\asdf.txt','w',encoding='utf-8')
# wf.write('shengzi')
# wf.writelines(['learn python\n','i am happy'])
# wf.close()
# with open('D:\\code\\day1\\asdf.txt','w',encoding='utf-8') as wf:
# wf.write('come on')
# wf.writelines(['persistance\n','you can do it'])
# with open('D:\\code\\day1\\asdf.txt','r',encoding='utf-8') as rf:
# print('readline---->',rf.readline())
# print('read---->',rf.read(6))
# print('readlines---->',rf.readlines())
# with open('D:\\code\\day1\\asdf.txt','rb+') as f:
# f.write(b'123456789')
# print(f.tell())
# f.seek(3)
# print(f.read(1))
# print(f.tell())
# f.seek(-2,2)
# print(f.tell())
# print(f.read(1))
# with open('D:\\code\\day1\\asdf.txt','r+') as f:
# print(f.isatty())
# f.truncate(2)
# print(f.read( ))
import os
#print(os.listdir('D:/'))
#os.mkdir('D:/pythonfile')
#os.makedirs('D:/test1/test2') 创建多级目录
#print(os.system('ping www.baidu.com'))
from enum import Enum
# class weekday(Enum):
# monday=0
# tuesday=1
# wednesday=2
# thursday=3
# friday=4
# saturday=5
# sunday=6
# print(weekday.monday)
# print(weekday.monday.name)
# print(weekday.monday.value)
# for day in weekday:
# print(day)
# print(day.name)
# print(day.value)
# print(list(weekday))
# #枚举成员只能比较==是否相等，不能比较大小
# print(weekday.monday==weekday.tuesday)
# from enum import Enum,unique
# @unique
# class Weekday(Enum):
# monday=0
# tuesday=1
# 定义枚举时，成员名称是不可以重复的，
# 但成员值是可以重复的，如果想要保证成员值不可重复，
# 可以通过装饰器 @unique 来实现
# for i in 'hello':
# print(i)
#过程即迭代
from collections.abc import Iterable
#print(isinstance(abc,Iterable))
#报错NameError: name 'abc' is not defined. Did you mean: 'abs'?
#
# print(isinstance('abc',Iterable)) True
# print(isinstance({1,3,4},Iterable))True
# print(isinstance(1002,Iterable))False
#迭代器对象本质是一个数据流，
# 它通过不断调用 __next__() 方法或被内置的 next() 方法
# 调用返回下一项数据，当没有下一项数据时抛出 StopIteration
# 异常迭代结束。上面我们说的 for 循环语句的实现便是利用了迭代器
# class MYiterator:#迭代器
#
# def __init__(self): #init initialize 初始化
# self.s = '程序之间' #初始化
# self.i = 0
# def __iter__(self):
# return self #返回自身
# def __next__(self):
# if self.i<4: #循环
# n=self.s[self.i]
# self.i+=1
# return n
# else:
# raise StopIteration #注意大写和raise
# mi=iter(MYiterator())
# for i in mi:
# print(i)
class MyIterator:
def __init__(self):
self.s = '程序之间'
self.i = 0
def __iter__(self):
return self
def __next__(self):
if self.i < 4:
n = self.s[self.i]
self.i += 1
return n
else:
raise StopIteration
mi = iter(MyIterator())
for i in mi:
print(i)