python的正则表达式和re模块详解_python

tel_num = "028-888888"
pattern_obj = re.compile("(\d{3})-(\d{6})")
res = re.match(pattern=pattern_obj, string=tel_num)
print("output: %s %s" % (res.group(1), res.group(2)))

output: 028 888888

muilt_types = """image.jpg
    image.jpeg
    image.png
    image.gif"""
pattern_obj = re.compile("(.jpg|.gif|.jpeg|.png)")
types = re.findall(pattern=pattern_obj, string=muilt_types)
print("output: {}".format(types ))

output: ['.jpg', '.jpeg', '.png', '.gif']

muilt_nums = """028-75855
01-75855
12345-75855
tel:75855"""
pattern_obj = re.compile("(?:\d{2}|\d{5}|tel)[\-:](\d{5})")
nums = re.findall(pattern=pattern_obj, string=muilt_nums)
print("output: {}".format(nums))

output: ['75855', '75855', '75855', '75855']