软件开的目录规范+sys,os,time模块

——————————————————————————————————————————————————————————————————

start.py

import sys,os

# print(__file__)#当前文件的一个路径

# print(os.path.abspath(__file__)) #当前文件的绝对路径
# print(os.path.dirname(os.path.abspath(__file__)))
# print(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(BASE_DIR )
from core import src

if __name__ == '__main__':
    src.run()

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

src.py

def login():
    print('登陆功能')

def register():
    print('注册')
    name=input('enter your name>>: ').strip()
    pwd=input('enter you password>>: ').strip()
    with open(settings.DB_PATH,mode='at',encoding = 'utf-8')as f:
        f.write('%s:%s \n'%(name,pwd))
        f.flush()
        common.logger('%s注册成功 \n'%name)
        print('注册成功')

def shopping():
    print('购物')

def transfer():
    print('转账')

def pay():
    print('支付')

funcs_dic={
    '1':login,
    '2':register,
    '3':shopping,
    '4':transfer,
    '5':pay
}

def run():
    while True:
        print("""
        1.登陆 | 2.注册 | 3.购物 | 4.转账 | 5.支付 | 6.退出
        """)
        choice=input('>>>: ').strip()
        if choice == '6':return
        if choice not in funcs_dic:
            print('错误，请再次输入')
            continue
        funcs_dic[choice]()

run()

_____________________________________________________________________________________________________________________________

settings.py

import os
# print(__file__)

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

DB_PATH = os.path.join(BASE_DIR,'db','db.txt') #DB_PATH = r'%s\db\db.txt'%BASE_DIR

LOG_PATH = os.path.join(BASE_DIR,'log','user.log.txt')

# print(DB_PATH)
# print(LOG_PATH)

# LOG_PATH = r'%s\log\user.log.txt'%BASE_DIR

# DB_PATH = r'D:\zrg\day19\文件开发的目录规范\ATM\db\db.txt'
#
# LOG_PATH = r'D:\zrg\day19\文件开发的目录规范\ATM\log\user.log.txt'

____________________________________________________________________________________________________________________________________

common.py

import time

from conf import settings

def logger(msg):
    current_time=time.strftime('%Y-%m-%d %X')
    with open(settings.LOG_PATH,'a',encoding='utf-8')as f:
        f.write('%s %s'%(current_time,msg))
        f.flush()

# print(time.strftime('%Y-%m-%d %X'))

___________________________________________________________________________________________________________________________

time.py

# 与时间相关的一个模块
import time

# 时间分三类：
# 1.时间戳  从1970年1.1日到现在的秒数
# print(time.time()/60/60/24)
# 计算时差
# t=time.time()
# time.sleep(2)
# t1=time.time()
# print(t1-t)

# 2.结构化时间
# print(time.localtime())
# 返回的是一个值，其中包含一个元组，里面是每个时间的值（东八区）
#time.struct_time(tm_year=2018, tm_mon=10, tm_mday=15, tm_hour=17, tm_min=29, tm_sec=7, tm_wday=0, tm_yday=288, tm_isdst=0)

# 单独获取某个时间属性
# print(time.localtime().tm_year)
# # 2018
# print(time.localtime().tm_hour)
# # 17

# 世界同一时间，比北京时间晚了八小时
# print(time.gmtime())

# 3.格式化的字符串时间
# print(time.strftime('%Y-%m-%d %H:%M:%S'))
# print(time.strftime('%Y-%m-%d %X'))

# 相互转换

# 时间戳转换成结构化
# print(time.localtime(0)) #元年

# 结构化转换成格式化的字符串

# 字符串转换为结构化

# 结构化转为时间戳

# 格林威治时间

time.asctime()
time.ctime()

____________________________________________________________________________________________________________________________

date.time.py

# 这是一个包，里面包含对事件的处理，对日期的处理
import datetime
#获取当前详细的时间
print(datetime.datetime.now())
# 获取当前时间的一部分
print(datetime.datetime.now().year)

# 替换时间的某一部分
# t1=datetime.datetime.now()
# t1=t1.replace(year=2020)
# print(t1)

# t1=datetime.datetime.now()
# t2=datetime.datetime.now()
# print(t2-t1)

时间差对象

tal=datetime.timedelta(days=20)
t1=datetime.datetime.now()
print(t1+tal)