请给我30个python语言下的正则表达式的代码实例

好的，以下是30个Python语言下的正则表达式的代码实例：

1. 匹配手机号码

import re

phone_number = "13812345678"
pattern = r"^1[3456789]\d{9}$"
result = re.match(pattern, phone_number)

if result:
    print("是手机号码")
else:
    print("不是手机号码")

2. 匹配电子邮箱地址

import re

email = "example@mail.com"
pattern = r"^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$"
result = re.match(pattern, email)

if result:
    print("是电子邮箱地址")
else:
    print("不是电子邮箱地址")

3. 匹配IP地址

import re

ip_address = "192.168.0.1"
pattern = r"^((25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)\.){3}(25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)$"
result = re.match(pattern, ip_address)

if result:
    print("是IP地址")
else:
    print("不是IP地址")

4. 匹配日期格式

import re

date = "2022-01-01"
pattern = r"^\d{4}-\d{2}-\d{2}$"
result = re.match(pattern, date)

if result:
    print("是日期格式")
else:
    print("不是日期格式")

5. 匹配数字

import re

num = "123456"
pattern = r"^\d+$"
result = re.match(pattern, num)

if result:
    print("是数字")
else:
    print("不是数字")

6. 匹配字母

import re

letter = "abcde"
pattern = r"^[a-zA-Z]+$"
result = re.match(pattern, letter)

if result:
    print("是字母")
else:
    print("不是字母")

7. 匹配字母和数字

import re

string = "abc123"
pattern = r"^[a-zA-Z0-9]+$"
result = re.match(pattern, string)

if result:
    print("是字母和数字")
else:
    print("不是字母和数字")

8. 匹配中文

import re

chinese = "中文"
pattern = r"^[\u4e00-\u9fa5]+$"
result = re.match(pattern, chinese)

if result:
    print("是中文")
else:
    print("不是中文")

9. 匹配用户名

import re

username = "user_123"
pattern = r"^[a-zA-Z][a-zA-Z0-9_]{5,17}$"
result = re.match(pattern, username)

if result:
    print("是用户名")
else:
    print("不是用户名")

10. 匹配密码

import re

password = "123456"
pattern = r"^[a-zA-Z]\w{5,17}$"
result = re.match(pattern, password)

if result:
    print("是密码")
else:
    print("不是密码")

11. 匹配URL

import re

url = "https://www.example.com"
pattern = r"^https?://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$"
result = re.match(pattern, url)

if result:
    print("是URL")
else:
    print("不是URL")

12. 匹配HTML标签

import re

html = "<div class='example'>Hello, World!</div>"
pattern = r"<[^>]+>"
result = re.findall(pattern, html)

print(result)

13. 匹配XML标签

import re

xml = "<example>Hello, World!</example>"
pattern = r"<([a-zA-Z]+)[^>]*>(.*?)</\1>"
result = re.findall(pattern, xml)

print(result)

14. 匹配电话号码

import re

phone_number = "010-12345678"
pattern = r"^0\d{2,3}-\d{7,8}$"
result = re.match(pattern, phone_number)

if result:
    print("是电话号码")
else:
    print("不是电话号码")

15. 匹配邮政编码

import re

zipcode = "100000"
pattern = r"^[1-9]\d{5}$"
result = re.match(pattern, zipcode)

if result:
    print("是邮政编码")
else:
    print("不是邮政编码")

16. 匹配身份证号码

import re

id_number = "110101199001010101"
pattern = r"^\d{6}(19|20)\d{2}(0\d|1[0-2])([0-2]\d|3[0-1])\d{3}[0-9Xx]$"
result = re.match(pattern, id_number)

if result:
    print("是身份证号码")
else:
    print("不是身份证号码")

17. 匹配用户名和密码

import re

username = "user_123"
password = "password123"
pattern = r"^[a-zA-Z][a-zA-Z0-9_]{5,17}$|^[a-zA-Z]\w{5,17}$"
result1 = re.match(pattern, username)
result2 = re.match(pattern, password)

if result1 and result2:
    print("是用户名和密码")
else:
    print("不是用户名和密码")

18. 匹配QQ号码

import re

qq_number = "123456789"
pattern = r"^[1-9]\d{4,10}$"
result = re.match(pattern, qq_number)

if result:
    print("是QQ号码")
else:
    print("不是QQ号码")

19. 匹配微信号

import re

wechat_id = "abc123"
pattern = r"^[a-zA-Z][-_a-zA-Z0-9]{5,19}$"
result = re.match(pattern, wechat_id)

if result:
    print("是微信号")
else:
    print("不是微信号")

20. 匹配车牌号

import re

license_plate = "京A12345"
pattern = r"^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}\w{5}$"
result = re.match(pattern, license_plate)

if result:
    print("是车牌号")
else:
    print("不是车牌号")

21. 匹配微博账号

import re

weibo_id = "@example"
pattern = r"^@[\w\u4e00-\u9fa5]+"
result = re.match(pattern, weibo_id)

if result:
    print("是微博账号")
else:
    print("不是微博账号")

22. 匹配身高

import re

height = "180cm"
pattern = r"^\d{2,3}cm$"
result = re.match(pattern, height)

if result:
    print("是身高")
else:
    print("不是身高")

23. 匹配体重

import re

weight = "60kg"
pattern = r"^\d{2,3}kg$"
result = re.match(pattern, weight)

if result:
    print("是体重")
else:
    print("不是体重")

24. 匹配IPV6地址

import re

ipv6_address = "2001:0db8:85a3:0000:0000:8a2e:0370:7334"
pattern = r"^([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$"
result = re.match(pattern, ipv6_address)

if result:
    print("是IPV6地址")
else:
    print("不是IPV6地址")

25. 匹配MAC地址

import re

mac_address = "00:11:22:33:44:55"
pattern = r"^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$"
result = re.match(pattern, mac_address)

if result:
    print("是MAC地址")
else:
    print("不是MAC地址")

26. 匹配XML注释

import re

xml_comment = "<!-- This is a comment -->"
pattern = r"<!--[\s\S]*?-->"
result = re.findall(pattern, xml_comment)

print(result)

27. 匹配HTML标签属性

import re

html_tag = "<div class='example'>Hello, World!</div>"
pattern = r"([\w-]+)\s*=\s*\"([^\"]+)\""
result = re.findall(pattern, html_tag)

print(result)

28. 匹配RGB颜色值

import re

rgb_color = "rgb(255, 255, 255)"
pattern = r"^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$"
result = re.match(pattern, rgb_color)

if result:
    print("是RGB颜色值")
else:
    print("不是RGB颜色值")

29. 匹配HSL颜色值

import re

hsl_color = "hsl(0, 0%, 100%)"
pattern = r"^hsl\((\d{1,3}),\s*(\d{1,3})%,\s*(\d{1,3})%\)$"
result = re.match(pattern, hsl_color)

if result:
    print("是HSL颜色值")
else:
    print("不是HSL颜色值")

30. 匹配十六进制颜色值

import re

hex_color = "#ffffff"
pattern = r"^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$"
result = re.match(pattern, hex_color)

if result:
    print("是十六进制颜色值")
else:
    print("不是十六进制颜色值")