# 正则IP地址匹配
pattern = re.compile("(1\d{2}|2[0-4]\d|25[0-5]|\d{2})\.(1\d{2}|2[0-4]\d|25[0-5]|\d{2})\.(1\d{2}|2[0-4]\d|25[0-5]|\d{2})\.(1\d{2}|2[0-4]\d|25[0-5]|\d{2})")
# 正则电话号码匹配
pattern = re.compile("1[3-8]\d{9}")
# 正则匹配日期：
s = '2020-9-4'
pattern = re.compile("(20[0-2]\d|1\d{3}|\d{3})-(\d| 1[0-2])-(\d| 2\d| 3[0-1])")
s = '2020-09-04'
pattern = re.compile("(20[0-2]\d|1\d{3}|\d{3})-(0\d| 1[0-2])-(0\d| 2\d| 3[0-1])")
# 正则匹配链接：
s = 'https://www.cnblogs.com/lidabo/p/5629673.html'
pattern = re.compile("https:\/\/\w+\.\w+.\w+\/\w+\/\w+\/\d{7}\.html")
