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 ```python import re phone_number = "13812345678" pattern = r"^1[3456789]\d{9}$" result = re.match(pattern, phone_number) if result: print("是手机号码") else: print("不是手机号码") ``` 2. 匹配电子邮箱地址 ```python import re email = "[email protected]" pattern = r"^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$" 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 ```python 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)$" result = re.match(pattern, ip_address) if result: print("是IP地址") else: print("不是IP地址") ``` 4. 匹配日期格式 ```python import re date = "2022-01-01" pattern = r"^\d{4}-\d{2}-\d{2}$" 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 ```python import re num = "123456" pattern = r"^\d+$" result = re.match(pattern, num) if result: print("是数字") else: print("不是数字") ``` 6. 匹配字母 ```python import re letter = "abcde" pattern = r"^[a-zA-Z]+$" 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 ```python import re string = "abc123" pattern = r"^[a-zA-Z0-9]+$" result = re.match(pattern, string) if result: print("是字母和数字") else: print("不是字母和数字") ``` 8. 匹配中文 ```python import re chinese = "中文" pattern = r"^[\u4e00-\u9fa5]+$" result = re.match(pattern, chinese) if result: print("是中文") else: print("不是中文") ``` 9. 匹配用户名 ```python import re username = "user_123" pattern = r"^[a-zA-Z][a-zA-Z0-9_]{5,17}$" result = re.match(pattern, username) if result: print("是用户名") else: print("不是用户名") ``` 10. 匹配密码 ```python import re password = "123456" pattern = r"^[a-zA-Z]\w{5,17}$" result = re.match(pattern, password) if result: print("是密码") else: print("不是密码") ``` 11. 匹配URL ```python import re url = "https://www.example.com" pattern = r"^https?://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$" result = re.match(pattern, url) if result: print("是URL") else: print("不是URL") ``` 12. 匹配HTML标签 ```python import re html = "<div class='example'>Hello, World!</div>" pattern = r"<[^>]+>" result = re.findall(pattern, html) print(result) ``` 13. 匹配XML标签 ```python import re xml = "<example>Hello, World!</example>" pattern = r"<([a-zA-Z]+)[^>]*>(.*?)</\1>" result = re.findall(pattern, xml) print(result) ``` 14. 匹配电话号码 ```python import re phone_number = "010-12345678" pattern = r"^0\d{2,3}-\d{7,8}$" 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 ```python import re zipcode = "100000" pattern = r"^[1-9]\d{5}$" result = re.match(pattern, zipcode) if result: print("是邮政编码") else: print("不是邮政编码") ``` 16. 匹配身份证号码 ```python import re id_number = "110101199001010101" pattern = r"^\d{6}(19|20)\d{2}(0\d|1[0-2])([0-2]\d|3[0-1])\d{3}[0-9Xx]$" 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 ```python 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 ```python import re qq_number = "123456789" pattern = r"^[1-9]\d{4,10}$" result = re.match(pattern, qq_number) if result: print("是QQ号码") else: print("不是QQ号码") ``` 19. 匹配微信号 ```python import re wechat_id = "abc123" pattern = r"^[a-zA-Z][-_a-zA-Z0-9]{5,19}$" 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 ```python import re license_plate = "京A12345" pattern = r"^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}\w{5}$" result = re.match(pattern, license_plate) if result: print("是车牌号") else: print("不是车牌号") ``` 21. 匹配微博账号 ```python import re weibo_id = "@example" pattern = r"^@[\w\u4e00-\u9fa5]+" result = re.match(pattern, weibo_id) if result: print("是微博账号") else: print("不是微博账号") ``` 22. 匹配身高 ```python import re height = "180cm" pattern = r"^\d{2,3}cm$" result = re.match(pattern, height) if result: print("是身高") else: print("不是身高") ``` 23. 匹配体重 ```python import re weight = "60kg" pattern = r"^\d{2,3}kg$" result = re.match(pattern, weight) if result: print("是体重") else: print("不是体重") ``` 24. 匹配IPV6地址 ```python import re ipv6_address = "2001:0db8:85a3:0000:0000:8a2e:0370:7334" pattern = r"^([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$" 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 ```python 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 ```python 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 ```python 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 ```python 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 ```python import re hsl_color = "hsl(0, 0%, 100%)" pattern = r"^hsl\((\d{1,3}),\s*(\d{1,3})%,\s*(\d{1,3})%\)$" result = re.match(pattern, hsl_color) if result: print("是HSL颜色值") else: print("不是HSL颜色值") ``` 30. 匹配十六进制颜色值 ```python import re hex_color = "#ffffff" pattern = r"^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$" 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") ```