# hello.py
def hi():
    print('Hi everyone, I love lsgogroup!')

import hello

hello.hi()
hi()   # NameError: name 'hi' is not defined!

# TemperatureConversion.py
def c2f(cel):
    fah = ce1 * 1.8 + 32
    return fah

def f2c(fah):
    cel = (fah-32)/1.8
    return cel

import TemperatureConversion

print('32摄氏度 = %.2f华氏度'% TemperatureConversion.c2f(32))
print('99华氏度 = %.2f摄氏度'% TemperatureConversion.f2c(99))

from TemperatureConversion import c2f,f2c

print('32摄氏度 = %.2f华氏度'%c2f(32))
print('99华氏度 = %.2f摄氏度'%f2c(99))

from TemperatureConversion import *

print('32摄氏度 = %.2f华氏度'%c2f(32))
print('99华氏度 = %.2f摄氏度'%f2c(99))

import TemperatureConversion as tc

print('32摄氏度 = %.2f华氏度'%tc.c2f(32))
print('99华氏度 = %.2f摄氏度'%tc.f2c(99))

PI = 3.14

def main():
    print("PI:",PI)
    
main()

from const import PI

def calc_round_area(radius):
    return PI*(radius**2)

def main():
    print('round area:',calc_round_area(2))
    
main()

PI = 3.14

def main():
    print("PI:",PI)
    
if __name__ == '__main__':
    main()

PI: 3.14

round area: 12.56

import const

print(__name__)  # __main__
print(const.__name__)  # const

import sys

print(sys.path)

sound/                       顶层包
    __init__.py              初始化sound包
    formats/                 文件格式转换子包
        __init__.py
        wavread.py
        wavwrite.py
        aiffread.py
        aiffwrite.py
        auread.py
        auwrite.py
        ...
    effects/                 声音效果子包
        __init__.py
        echo.py
        surround.py
        reverse.py
        ...
    filters/                 filters子包
        __init__.py
        equalizer.py
        vocoder.py
        karaoke.py
        ...

import sound.effcts.echo

sound.effects.echo.echofilter(input, output, delay=0.7, atten=4)

from sound.effects import echo

echo.echofilter(input, output, delay=0.7, atten=4)

from sound.effects.echo import echofilter

echofilter(input, output, delay=0.7, atten=4)

__all__ = ['echo','surround','reverse']

import sound.effects.echo
import sound.effects.surround
from sound.effects import *

class datetime(date):
    def __init__(self,year,month,day,hour,minute,second,microsecond,tzinfo):
        pass
    def now(cls,tz=None):
        pass
    def timestamp(self):
        pass
    def fromtimestamp(cls,t,tz=None):
        pass
    def date(self):
        pass
    def time(self):
        pass
    def year(self):
        pass
    def month(self):
        pass
    def day(self):
        pass
    def hour(self):
        pass
    def minute(self):
        pass
    def second(self):
        pass
    def isoweekday(self):
        pass
    def strftime(self,fmt):
        pass
    def combine(cls,date,time,tzinfo=True):
        pass

import datetime

dt = datetime.datetime(year=2021,month=4,day=27,hour=12,minute=29,second=57)
print(dt)
print(dt.timestamp())

dt = datetime.datetime.fromtimestamp(1593055439.0)
print(dt)
print(type(dt))

dt = datetime.datetime.now()
print(dt)
print(type(dt))

import datetime

dt = datetime.datetime(year=2020,month=6,day=25,hour=11,minute=51,second=49)
s = dt.strftime("'%Y/%m/%d %H:%M:%S'")
print(s)

s = dt.strftime('%d %B, %Y, %A')
print(s)

import datetime

d1 = datetime.date(2010,9,28)
s = d1.strftime('%m-%d, %Y')
print(s)

import datetime

dt = datetime.datetime(year=2020,month=6,day=25,hour=11,minute=51,second=49)
print(dt.date())
print(type(dt.date()))
print(dt.time())
print(type(dt.time()))
print(dt.year)
print(dt.month)
print(dt.day)
print(dt.hour)
print(dt.minute)
print(dt.second)
print(dt.isoweekday())

from dateutil import parser

s = '2020-06-25'
dt = parser.parse(s)
print(dt)
print(type(dt))

s = 'March 31, 2010, 10:51pm'
dt = parser.parse(s)
print(dt)
print(type(dt))

from dateutil import parser

s1 = "2010 Jan 1"
s2 = "31-1-2000"
s3 = 'October10, 1996, 10:40pm'

dt1 = parser.parse(s1)
dt2 = parser.parse(s2)
dt3 = parser.parse(s3)

print(dt1)
print(dt2)
print(dt3)

import numpy as np
from dateutil import parser

dateString = ['Oct, 2, 1869','Oct, 10, 1869','Oct, 15, 1869','Oct, 20, 1869','Oct, 23, 1869']
dates = [parser.parse(i) for i in dateString]
td = np.diff(dates)
print(td)
d = [i.days for i in td]
print(d)

class date:
    def __init__(self, year, month, day):
        pass
    def today(cls):
        pass

import datetime

d = datetime.date(2020,6,25)
print(d)
print(type(d))

d = datetime.date.today()
print(d)
print(type(d))

import datetime

d1 = datetime.date(1869,1,2)
d2 = datetime.date(1869,10,2)
dt = (d2-d1).days
print(dt)
print(d1.isoweekday())
print(dt//7+1)

class time:
    def __init__(self, hour, minute, second, microsecond, tzinfo):
        pass

import datetime

t = datetime.time(12,9,23,12980)
print(t)
print(type(t))

import datetime

date = datetime.date(2019,10,2)
dt = datetime.datetime(date.year,date.month,date.day)
print(dt)

dt = datetime.datetime.combine(date, datetime.time.min)
print(dt)

class timedelta(SupportsAbs[timedelta]):
    def __init__(self,days,seconds,microseconds,miliseconds,minutes,hours,weeks,):
        pass
    def days(self):
        pass
    def total_seconds(self):
        pass

import datetime

td = datetime.timedelta(days=30)
print(td)
print(type(td))
print(datetime.date.today())
print(datetime.date.today()+td)

dt1 = datetime.datetime(2020,1,31,10,10,0)
dt2 = datetime.datetime(2019,1,31,10,10,9)
td = dt1-dt2
print(td)
print(type(td))

td1 = datetime.timedelta(days=30)
td2 = datetime.timedelta(weeks=1)
td = td1 - td2
print(td)
print(type(td))

from dateutil import parser
import datetime

bDay = 'Oct 13, 1995'
dt1 = parser.parse(bDay).date()
dt2 = datetime.date.today()
dt3 = datetime.date(dt2.year, dt1.month, dt1.day)
print(dt1)
print(dt2)
print(dt3)

td = dt2-dt1
print(td.days)
td = dt3 - dt2
print(td.days)
print(td.days*24*60*60)
print(td.total_seconds())

f = open('将进酒.txt')
print(f)

for each in f:
    print(each)

f = open("将进酒.txt")
print('FileName:',f.name)
f.close()

f = open('将进酒.txt','r')
line = f.read(20)
print("读取的字符串：%s"% line)
f.close()

f = open('将进酒.txt','r')
line = f.readline()
print("读取的字符串: %s"%line)
f.close()

f = open('将进酒.txt','r')
lines = f.readlines()
print(lines)

for each in lines:
    each.strip()
    print(each)
f.close()

f = open('将进酒.txt','r')
line = f.readline()
print(line)
pos = f.tell()
print(pos)
f.close()

f = open('将进酒.txt','r')
line = f.readline()
print(line)
line = f.readline()
print(line)
f.seek(0,0)
line = f.readline()
print(line)
f.close()

f = open('workfile.txt','wb+')
print(f.write(b'0123456789abcdef'))  # 返回的16是字符个数
print(f.seek(5))
print(f.read(1))
print(f.seek(-3,2))    # 返回的13是16-3
print(f.read(1))

str = '...'
# 文本=Unicode字符序列
# 相当于string类型

str = b'...'
# 文本=八位序列（0到255之间的整数）
# 字节文字总是以'b'或'B'作为前缀；它们产生一个字节类型的实例，而不是str类型。
# 相当于byte[]

f = open('将进酒.txt','r+')
str = '\n作者：李白'
f.seek(0,2)
line = f.write(str)
f.seek(0,0)
for each in f:
    print(each)
f.close()

f = open('test.txt','w+')
seq = ['小马的程序人生\n','老马的程序人生']
f.writelines(seq)
f.seek(0,0)
for each in f:
    print(each)
f.close()

try:
    f = open('myfile.txt','w')
    for line in f:
        print(line)
except OSError as error:
    print('出错啦！%s' % error)
finally:
    f.close()

try:
    with open('myfile.txt','w') as f:
        for line in f:
            print(line)
except OSError as error:
    print('出错啦！%s'%error)

import os

path = '/Users'
print("当前工作目录：%s"%os.getcwd())
os.chdir(path)
print("目录修改成功：%s"%os.getcwd())

import os

dirs = os.listdir()
for item in dirs:
    print(item)

import os 

path = '/Users/alexandreaswiftie/Documents'
os.chdir(path)
if os.path.isdir(r'./b') is False:   # windows是\
    os.mkdir(r'./B')
    os.mkdir(r'./B/A')
    
os.mkdir(r'./C/A')

import os 
os.makedirs(r'./E/A')

import os 

print("目录为：%s"%os.listdir(r'./E/A'))
os.remove(r'./E/A/test.txt')
print("目录为：%s"%os.listdir(r'./E/A'))

import os

print("目录为：%s"%os.listdir(r'./E'))
os.rmdir(r'./E/A')
print("目录为：%s"%os.listdir(r'./E'))

import os 

print("目录为：%s"%os.listdir(os.getcwd()))
os.removedirs(r'./E/A')
print("目录为：%s"%os.listdir(os.getcwd()))

import os 

print("目录为：%s"%os.listdir(os.getcwd()))
os.rename("test.txt","test2.txt")
print("重命名成功。")
print("目录为：%s"%os.listdir(os.getcwd()))

import os 

path = os.getcwd() + "/a.py"  # windows是'\\a.py'
a = os.system(r'python %s'%path)

os.system('calc')  # 打开计算器

import os 

print(os.curdir)
print(os.pardir)
print(os.sep)
print(os.linesep)
print(os.name)

import os 

# 返回文件名
print(os.path.basename(r'C:\test\lsgo.txt'))  # lsgo.txt
# 返回目录路径
print(os.path.dirname(r'C:\test\lsgo.txt'))   # C:\test
# 将目录和文件名合成一个路径
print(os.path.join('C:\\','test','lsgo.txt')) # C:\test\lsgo.txt
# 分割文件名与路径
print(os.path.split(r'C:\test\lsgo.txt'))     # ('C:\\test','lsgo.txt')
# 分割文件名与扩展名
print(os.path.splitext(r'C:\test\lsgo.txt'))  # ('C:\\test\\lsgo','.txt')

import os 
import time 

file = r'.\lsgo.txt'
print(os.path.getsize(file))
print(os.path.getatime(file))
print(os.path.getctime(file))
print(os.path.getmtime(file))
print(time.gmtime(os.path.getctime(file)))
print(time.localtime(os.path.getctime(file)))

import os 

print(os.path.ismount('D:\\'))  
print(os.path.ismount('D:\\Test'))

import pickle 

dataList = [[1,1,'yes'],
            [1,1,'yes'],
            [1,0,'no'],
            [0,1,'no'],
            [0,1,'no']]

dataDic = {0:[1,2,3,4],
           1:('a','b'),
           2:{'c':'yes','d':'no'}}

# 使用dump()将数据序列化到文件中
fw = open(r'.\dataFile.pkl','wb')

# pickle the list using the highest protocol available
pickle.dump(dataList,fw,-1)

# pickle dictionary using protocol 0.
pickle.dump(dataDic,fw)
fw.close()

# 使用load()将数据从文件中序列化读出
fr = open('dataFile.pkl','rb')
data1 = pickle.load(fr)
print(data1)
data2 = pickle.load(fr)
print(data2)
fr.close()