Python之路15-函数

import time

def logger():
    with open(‘a.txt‘,‘a+‘) as f:
        time_format = ‘%Y-%m-%d %X‘
        time_current = time.strftime(time_format)
        f.write(‘%s end action\n‘ % time_current)

def test1():
    ‘‘‘testing1‘‘‘
    print (‘test1 starting action...‘)
    logger()

def test2():
    ‘‘‘testing2‘‘‘
    print (‘test2 starting action...‘)
    logger()

def test3():
    ‘‘‘testing3‘‘‘
    print(‘test3 starting action...‘)
    logger()

test1()
test2()
test3()

#代码重用
#保持一致性
#可扩展