python第五天

连写两天博客实在是！！！愚蠢的人类啊

1.双层（多层）装饰器：装饰器就是将原函数装饰成另外一个函数，既然又成为了函数，当然可以再被装饰，理解这个理念就可以了，层数关系是由下到上一层层被包装的！如果还不理解，去百度吧！北方不想给愚蠢的人类进行过多的解释（其实是语文学的不好的缘故...）

2.模块：不要起一个跟内置模块重名的文件名！！！

3.生成器：yield

4.日志模块：

#!/usr/bin/env python
import logging
logger= logging.getLogger('北方姆Q')
logger.setLevel(logging.INFO)

ch = logging.StreamHandler()
ch.setLevel(logging.ERROR)

fh = logging.FileHandler('log.txt')
fh.setLevel(logging.DEBUG)

formatter1 = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
formatter2 = logging.Formatter('%(asctime)s - %(lineno)d - %(process)d- %(levelname)s - %(message)s')

ch.setFormatter(formatter2)
fh.setFormatter(formatter1)

logger.addHandler(ch)
logger.addHandler(fh)

logger.debug('DEBUG!')
logger.info('INFO!')
logger.warning('WARNING!')
logger.error('ERROR!')
logger.critical('CRITICAL!')

C:UsersAdministratorAppDataLocalProgramsPythonPython35-32python.exe C:/Users/Administrator/PycharmProjects/ACE/study5/logfile.py
2016-08-11 11:52:51,155 - 24 - 6220- ERROR - ERROR!
2016-08-11 11:52:51,155 - 25 - 6220- CRITICAL - CRITICAL!

Process finished with exit code 0

5.时间模块：

#!/usr/bin/env python
import time
print(time.time())                  #从1970-1-1起到现在的时间戳
print(time.ctime())                 #当前日期
print(time.ctime(time.time()-86400))    #将时间戳转化成字符串
print(time.gmtime())                #将当前时间戳转化成struct_time格式
print(time.localtime())             #将本地时间戳转化成struct_time格式
print(time.mktime(time.localtime()))    #与ocaltime()相反
#time.sleep(3)                           #阻塞时间
print(time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime()))    #将struct_time格式转换成指定格式
print(time.strptime('2012-12-12', '%Y-%m-%d'))    

C:UsersAdministratorAppDataLocalProgramsPythonPython35-32python.exe C:/Users/Administrator/PycharmProjects/ACE/study5/shijianmokuai.py
1470887616.780512
Thu Aug 11 11:53:36 2016
Wed Aug 10 11:53:36 2016
time.struct_time(tm_year=2016, tm_mon=8, tm_mday=11, tm_hour=3, tm_min=53, tm_sec=36, tm_wday=3, tm_yday=224, tm_isdst=0)
time.struct_time(tm_year=2016, tm_mon=8, tm_mday=11, tm_hour=11, tm_min=53, tm_sec=36, tm_wday=3, tm_yday=224, tm_isdst=0)
1470887616.0
2016-08-11 03:53:36
time.struct_time(tm_year=2012, tm_mon=12, tm_mday=12, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=2, tm_yday=347, tm_isdst=-1)

Process finished with exit code 0

#!/usr/bin/env python
import datetime
print(datetime.datetime.today())            #输出当前时间
time_now = datetime.datetime.now()
print(time_now.timetuple())                 #struct_time格式
print(time_now.replace(2012, 2, 2))         #直接替换
print(datetime.datetime.now() - datetime.timedelta(days=10))    #10天前
print(datetime.datetime.now() + datetime.timedelta(days=10))    #10天后
print(datetime.datetime.now() - datetime.timedelta(hours=10))   #10小时前
print(datetime.datetime.now() + datetime.timedelta(hours=10))   #10小时后
print(datetime.datetime.now() - datetime.timedelta(seconds=100))    #100秒前
print(datetime.datetime.now() + datetime.timedelta(seconds=100))    #100秒后
print(datetime.datetime.now() + datetime.timedelta(weeks=3))    #3周后
print(datetime.datetime.now() - datetime.timedelta(weeks=3))    #3周前

C:UsersAdministratorAppDataLocalProgramsPythonPython35-32python.exe C:/Users/Administrator/PycharmProjects/ACE/study5/shijianmo.py
2016-08-11 11:54:22.109105
time.struct_time(tm_year=2016, tm_mon=8, tm_mday=11, tm_hour=11, tm_min=54, tm_sec=22, tm_wday=3, tm_yday=224, tm_isdst=-1)
2012-02-02 11:54:22.109104
2016-08-01 11:54:22.109104
2016-08-21 11:54:22.109104
2016-08-11 01:54:22.109104
2016-08-11 21:54:22.109104
2016-08-11 11:52:42.109104
2016-08-11 11:56:02.109104
2016-09-01 11:54:22.109104
2016-07-21 11:54:22.109104

Process finished with exit code 0

GET到了新技能！！！！