【1.81】用户的继承--logger

import logging

formatter=logging.Formatter('%(asctime)s - %(name)s - %(levelname)s -%(module)s:  %(message)s',
                    datefmt='%Y-%m-%d %H:%M:%S %p',)

ch=logging.StreamHandler()
ch.setFormatter(formatter)


logger1=logging.getLogger('root')
logger2=logging.getLogger('root.child1')
logger3=logging.getLogger('root.child1.child2')


logger1.addHandler(ch)
logger2.addHandler(ch)
logger3.addHandler(ch)
logger1.setLevel(10)
logger2.setLevel(10)
logger3.setLevel(10)

logger1.debug('log1 debug')
logger2.debug('log2 debug')
logger3.debug('log3 debug')
'''
2017-07-28 22:22:05 PM - root - DEBUG -test:  log1 debug
2017-07-28 22:22:05 PM - root.child1 - DEBUG -test:  log2 debug
2017-07-28 22:22:05 PM - root.child1 - DEBUG -test:  log2 debug
2017-07-28 22:22:05 PM - root.child1.child2 - DEBUG -test:  log3 debug
2017-07-28 22:22:05 PM - root.child1.child2 - DEBUG -test:  log3 debug
2017-07-28 22:22:05 PM - root.child1.child2 - DEBUG -test:  log3 debug
'''