import logging

# logging为默认打印者，名字叫root，配置采用以下方式
h1 = logging.StreamHandler()
h2 = logging.FileHandler(‘d.log‘)
logging.basicConfig(
    # filename=‘my.log‘,
    # filemode=‘w‘,
    # stream=sys.stderr,  # 往控制台打印采用具体的输出流
    format=‘%(asctime)s [%(levelname)s]- %(name)s: %(message)s‘,
    datefmt=‘%Y-%m-%d %H:%M:%S‘,
    level=logging.DEBUG,  # 10, 代表DEBUG及DEBUG级别以上都能输出
    handlers=[h1, h2]
)

logging.debug("debug")
logging.info("info")
logging.warning("warning")
logging.error("error")
logging.critical("critical")

 1.新建打印者
logger = logging.getLogger("Owen")

 2.创建句柄：输出的位置
stream_handler = logging.StreamHandler()
a_file_handler = logging.FileHandler(‘a.log‘)
b_file_handler = logging.FileHandler(‘b.log‘)


3.打印者绑定句柄
logger.addHandler(stream_handler)
logger.addHandler(a_file_handler)
logger.addHandler(b_file_handler)

4.设置格式
fmt1 = logging.Formatter(‘%(asctime)s - %(msg)s‘)
fmt2 = logging.Formatter(‘%(asctime)s [%(name)s] - %(msg)s‘)

5.为句柄绑定输出格式
stream_handler.setFormatter(fmt1)
a_file_handler.setFormatter(fmt1)
b_file_handler.setFormatter(fmt2)

ogger.critical(‘msg‘)

import logging
# 1.创建logger
log1 = logging.getLogger(‘Owen‘)
log2 = logging.getLogger(‘Zero‘)
r_log = logging

# 2.logger设置级别
log1.setLevel(logging.DEBUG)

# 3.设置句柄
h1 = logging.StreamHandler()

# 4.设置句柄级别：
# 1）系统句柄默认级别warning，
# 2）自定义的句柄级别默认同logger，也可以在logger基础上在加以限制
h1.setLevel(logging.DEBUG)

# 5.logger添加句柄
log1.addHandler(h1)

# log1可以打印DEBUG以上的信息，但往不同位置打印，采用不同句柄的二次级别限制
h2 = logging.FileHandler(‘c.log‘)
h2.setLevel(logging.WARNING)
log1.addHandler(h2)


log1.debug(‘debug‘)
log1.info(‘info‘)
log1.warning(‘warning‘)
log1.error(‘error‘)
log1.critical(‘critical‘)

log2.critical(‘00000‘)

r_log.critical(‘00000‘)

# 1.配置
LOGGING_DIC = {
    ‘version‘: 1,
    ‘disable_existing_loggers‘: False,
    ‘formatters‘: {
        ‘o_fmt1‘: {
            ‘format‘: ‘%(name)s:%(asctime)s - %(message)s‘
        },
        ‘o_fmt2‘: {
            ‘format‘: ‘%(name)s:%(asctime)s [%(levelname)s] - %(message)s‘
        }
    },
    ‘filters‘: {},
    ‘handlers‘: {
        ‘o_cmd‘: {
            ‘level‘: ‘DEBUG‘,
            ‘class‘: ‘logging.StreamHandler‘,
            ‘formatter‘: ‘o_fmt1‘
        },
        ‘o_file‘: {
            ‘level‘: ‘WARNING‘,
            ‘class‘: ‘logging.handlers.RotatingFileHandler‘,
            ‘formatter‘: ‘o_fmt2‘,
            ‘filename‘: r‘F:\python8期\课堂内容\day20\代码\part4\logging.log‘,  # 日志文件
            ‘maxBytes‘: 1024*1024*5,  # 日志大小 5M
            ‘backupCount‘: 5, #日志文件最大个数
            ‘encoding‘: ‘utf-8‘,  # 日志文件的编码
        }
    },
    ‘loggers‘: {
        ‘o_owen‘: {
            ‘level‘: ‘DEBUG‘,
            ‘handlers‘: [‘o_cmd‘, ‘o_file‘]
        },
        ‘o_zero‘: {
            ‘level‘: ‘DEBUG‘,
            ‘handlers‘: [‘o_file‘]
        }
    }
}

# 2.加载配置
import logging.config
logging.config.dictConfig(LOGGING_DIC)


# 3.使用
log = logging.getLogger(‘o_owen‘)
log.warning(‘123‘)

import re
res = re.findall("表达式"，"字符串内容")

# 该方法得到一个列表
print(res)