python常用模块

1Time

import time

print(time.time())
print(time.clock())#计算cpu执行时间
print(time.gmtime())#世界标准时间
print(time.strftime())  #Commonly used format codes:  设置时间第一个参数为设置时间格式
                            # %Y  Year with century as a decimal number.
                            # %m  Month as a decimal number [01,12].
                            # %d  Day of the month as a decimal number [01,31].
                            # %H  Hour (24-hour clock) as a decimal number [00,23].
                            # %M  Minute as a decimal number [00,59].
                            # %S  Second as a decimal number [00,61].
                            # %z  Time zone offset from UTC.
                            # %a  Locale's abbreviated weekday name.
                            # %A  Locale's full weekday name.
                            # %b  Locale's abbreviated month name.
                            # %B  Locale's full month name.
                            # %c  Locale's appropriate date and time representation.
                            # %I  Hour (12-hour clock) as a decimal number [01,12].
                            # %p  Locale's equivalent of either AM or PM.
print(time.strptime())#字符串时间转换为结构化时间 第一个参数为字符串第二个为时间格式
print(time.ctime())#当前时间格式固定 参数转化为标准时间从1970年开始算
print(time.mktime())#转换为时间戳

import datetime
print(datetime.datetime.now())#直接看时间

2logging模块

python常用模块

日志格式：

python常用模块

import logging

# logging.debug('debug message')
# logging.info('info message')
# logging.warning('warning message')
# logging.error('error message')
# logging.critical('critical message')
#
# logging.basicConfig(level=logging.DEBUG,#级别
#                     format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)',#格式
#                     datefmt='%a,%d %b %Y %H:%M:%S',#时间格式
#                     filename='/tmp/test.log',#文件目录名字
#                     filemode='w')#设置输出到文件

logger=logging.getLogger()
#创建一个handler，用于写入日志文件
fh=logging.FileHandler('test.log')
#再创建一个handler，用于输出控制台
ch=logging.StreamHandler()
logger.setLevel(logging.DEBUG)

formatter=logging.Formatter('%(asctime)s-%(name)s-%(levelname)s-%(message)')
fh.setFormatter(formatter)
ch.setFormatter(formatter)
logger.addHandler(fh)
logger.addHandler(ch)

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