文章目录
1.判断变量名是否符合要求2.匹配163邮箱地址3.所有正则表达式汇总
1.判断变量名是否符合要求
import re
def main():
names
= ["age", "_age", "1age", "age1", "a_age", "age_1_", "age!", "a#123", "__________"]
for name
in names
:
ret
= re
.match
(r
"^[a-zA-Z_][a-zA-Z0-9_]*$", name
)
if ret
:
print("变量名:%s 符合要求....通过正则匹配出来的数据是:%s" % (name
, ret
.group
()))
else:
print("变量名:%s 不符合要求...." % name
)
if __name__
== "__main__":
main
()
2.匹配163邮箱地址
import re
def main():
email
= input("请输入一个邮箱地址:")
ret
= re
.match
(r
"[a-zA-Z_0-9]{4,20}@163\.com$", email
)
if ret
:
print("%s符合要求...." % email
)
else:
print("%s不符合要求...." % email
)
if __name__
== "__main__":
main
()
3.所有正则表达式汇总
import re
re
.match
(r
"hello", "hello world")
re
.match
(r
"hello", "Hello world")
re
.match
(r
"[hH]ello", "Hello world")
re
.match
(r
"[hH]ello", "hello world")
re
.match
(r
"速度与激情1", "速度与激情1")
re
.match
(r
"速度与激情1", "速度与激情2")
re
.match
(r
"速度与激情\d", "速度与激情2")
re
.match
(r
"速度与激情\d", "速度与激情3")
re
.match
(r
"速度与激情\d", "速度与激情5")
ret
= re
.match
(r
"速度与激情\d", "速度与激情5")
ret
.group
()
ret
= re
.match
(r
"速度与激情\d", "速度与激情8")
ret
.group
()
ret
= re
.match
(r
"速度与激情\d", "速度与激情88")
ret
.group
()
ret
= re
.match
(r
"速度与激情\d", "速度与激情8")
ret
.group
()
ret
= re
.match
(r
"速度与激情\d", "速度与激情9")
ret
.group
()
ret
= re
.match
(r
"速度与激情[12345678]", "速度与激情1")
ret
.group
()
re
.match
(r
"速度与激情[12345678]", "速度与激情1").group
()
re
.match
(r
"速度与激情[12345678]", "速度与激情2").group
()
re
.match
(r
"速度与激情[12345678]", "速度与激情3").group
()
re
.match
(r
"速度与激情[12345678]", "速度与激情8").group
()
re
.match
(r
"速度与激情[12345678]", "速度与激情9").group
()
re
.match
(r
"速度与激情[12345678]", "速度与激情9")
re
.match
(r
"速度与激情[1-8]", "速度与激情3")
re
.match
(r
"速度与激情[1-8]", "速度与激情5")
re
.match
(r
"速度与激情[1-8]", "速度与激情1")
re
.match
(r
"速度与激情[1-8]", "速度与激情8")
re
.match
(r
"速度与激情[1-8]", "速度与激情0")
re
.match
(r
"速度与激情[1-8]", "速度与激情9")
re
.match
(r
"速度与激情[123678]", "速度与激情1")
re
.match
(r
"速度与激情[123678]", "速度与激情2")
re
.match
(r
"速度与激情[123678]", "速度与激情3")
re
.match
(r
"速度与激情[123678]", "速度与激情6")
re
.match
(r
"速度与激情[123678]", "速度与激情8")
re
.match
(r
"速度与激情[123678]", "速度与激情4")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情1")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情2")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情3")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情4")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情5")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情6")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情7")
re
.match
(r
"速度与激情[1-36-8]", "速度与激情8")
re
.match
(r
"速度与激情[1-8abcd]", "速度与激情8")
re
.match
(r
"速度与激情[1-8abcd]", "速度与激情8").group
()
re
.match
(r
"速度与激情[1-8abcd]", "速度与激情a").group
()
re
.match
(r
"速度与激情[1-8abcd]", "速度与激情b").group
()
re
.match
(r
"速度与激情[1-8abcd]", "速度与激情d").group
()
re
.match
(r
"速度与激情[1-8abcd]", "速度与激情e").group
()
re
.match
(r
"速度与激情[1-8a-d]", "速度与激情e").group
()
re
.match
(r
"速度与激情[1-8a-z]", "速度与激情e").group
()
re
.match
(r
"速度与激情[1-8a-zA-Z]", "速度与激情E").group
()
re
.match
(r
"速度与激情\w", "速度与激情E").group
()
re
.match
(r
"速度与激情\w", "速度与激情e").group
()
re
.match
(r
"速度与激情\w", "速度与激情4").group
()
re
.match
(r
"速度与激情\w", "速度与激情_").group
()
re
.match
(r
"速度与激情\w", "速度与激情=").group
()
re
.match
(r
"速度与激情\w", "速度与激情！").group
()
re
.match
(r
"速度与激情\w", "速度与激情哈").group
()
re
.match
(r
"速度与激情 \d", "速度与激情 1").group
()
re
.match
(r
"速度与激情\s\d", "速度与激情 1").group
()
re
.match
(r
"速度与激情\s\d", "速度与激情\t1").group
()
re
.match
(r
"速度与激情.", "速度与激情1").group
()
re
.match
(r
"速度与激情.", "速度与激情a").group
()
re
.match
(r
"速度与激情.", "速度与激情A").group
()
re
.match
(r
"速度与激情.", "速度与激情_").group
()
re
.match
(r
"速度与激情.", "速度与激情哈").group
()
re
.match
(r
"速度与激情.", "速度与激情！").group
()
re
.match
(r
"速度与激情.", "速度与激情#").group
()
re
.match
(r
"速度与激情\d\d", "速度与激情12").group
()
re
.match
(r
"速度与激情\d\d", "速度与激情1").group
()
re
.match
(r
"速度与激情\d{1,2}", "速度与激情1").group
()
re
.match
(r
"速度与激情\d{1,2}", "速度与激情2").group
()
re
.match
(r
"速度与激情\d{1,2}", "速度与激情12").group
()
re
.match
(r
"速度与激情\d{1,3}", "速度与激情12").group
()
re
.match
(r
"速度与激情\d{1,3}", "速度与激情123").group
()
re
.match
(r
"速度与激情\d{1,3}", "速度与激情1").group
()
re
.match
(r
"速度与激情\d{1,3}", "速度与激情12").group
()
re
.match
(r
"\d{11}", "12345678901").group
()
re
.match
(r
"\d{11}", "1234567890").group
()
re
.match
(r
"\d{11}", "123456780").group
()
re
.match
(r
"\d{11}", "123456A78901").group
()
re
.match
(r
"021-\d{8}", "021-12345678").group
()
re
.match
(r
"021-?\d{8}", "02112345678").group
()
re
.match
(r
"021-?\d{8}", "021-12345678").group
()
re
.match
(r
"\d{3}-?\d{8}", "021-12345678").group
()
re
.match
(r
"\d{3,4}-?\d{8}", "021-12345678").group
()
re
.match
(r
"\d{3,4}-?\d{8}", "0531-12345678").group
()
re
.match
(r
"\d{3,4}-?\d{8}", "0532-12345678").group
()
re
.match
(r
"\d{3,4}-?\d{7,8}", "0532-12345678").group
()
re
.match
(r
"\d{3,4}-?\d{7,8}", "0532-1234567").group
()
html_content
= """fdsf
kasdjfkjasdkfjkasdjfjahsdufhawufhausdhfuahsdf
asdjfhjjasdhf
asdfasd'fas
df
asd
fas
df
asd
fa
sdf
asdf"""
print(html_content
)
re
.match
(r
".*", html_content
).group
()
re
.match
(r
".*", html_content
, re
.S
).group
()
re
.match
(r
".*", "a").group
()
re
.match
(r
".*", "a1").group
()
re
.match
(r
".*", "").group
()
re
.match
(r
".+", "a").group
()
re
.match
(r
".+", "ab").group
()
re
.match
(r
".+", "abaksdjfkjasdkfjaksdjfkajsdfkjs").group
()
re
.match
(r
".+", "").group
()
re
.match
(r
"\d{3}", "123").group
()
re
.match
(r
"\d{3}", "12").group
()
re
.match
(r
"\d{3}", "123456789").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@163\.com$", "laowang@163.com")
re
.match
(r
"[a-zA-Z0-9_]{4,20}@163\.com$", "laowang@163.com").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@163|126\.com$", "laowang@163.com").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@163|126\.com$", "126.com").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@(163|126)\.com$", "126.com").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@(163|126)\.com$", "laowang@126.com").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@(163|126)\.com$", "laowang@163.com").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@(163|126)\.com$", "laowang@163.com").group
()
re
.match
(r
"[a-zA-Z0-9_]{4,20}@(163|126)\.com$", "laowang@163.com").group
(1)
re
.match
(r
"([a-zA-Z0-9_]{4,20})@(163|126)\.com$", "laowang@163.com").group
(1)
re
.match
(r
"([a-zA-Z0-9_]{4,20})@(163|126)\.com$", "laowang@163.com").group
(2)
re
.match
(r
"([a-zA-Z0-9_]{4,20})@(163|126)\.com$", "laowang@163.com").group
(3)
html_str
= "<h1>hahahah</h1>"
re
.match
(r
"<\w*>.*</\w*>", html_str
)
re
.match
(r
"<\w*>.*</\w*>", html_str
).group
()
html_str
= "<h1>hahahah</h2>"
re
.match
(r
"<\w*>.*</\w*>", html_str
).group
()
re
.match
(r
"<(\w*)>.*</\1>", html_str
).group
()
html_str
= "<h1>hahahah</h1>"
re
.match
(r
"<(\w*)>.*</\1>", html_str
).group
()
html_str
= "<body><h1>hahahah</h1></body>"
re
.match
(r
"<(\w*)><(\w*)>.*</\1></\2>", html_str
).group
()
re
.match
(r
"<(\w*)><(\w*)>.*</\2></\1>", html_str
).group
()
re
.match
(r
"<(?P<p1>\w*)><(?P<p2>\w*)>.*</(?P=p2)></(?P=p1)>", html_str
).group
()
re
.search
(r
"\d+", "阅读次数为 9999").group
()
re
.search
(r
"\d+", "阅读次数为 9999, 点赞数为:100").group
()
re
.search
(r
"\d+", "阅读次数为 9999, 点赞数为:100").group
(1)
re
.search
(r
"\d+", "阅读次数为 9999, 点赞数为:100").group
(2)
re
.search
(r
"^\d+", "阅读次数为 9999, 点赞数为:100").group
(2)
re
.findall
(r
"\d+", "python = 9999, c = 7890, c++ = 12345")
re
.sub
(r
"\d+", '998', "python = 997")
re
.sub
(r
"\d+", '998', "python = 997, c++ = 1024")
html_str
= """
<dd class="job_bt">
<h3 class="description">职位描述：</h3>
<div>
<p>职位诱惑：<br>机器学习相关项目，完全新技术驱动，互联网公司，工作氛围好，扁平管理，有技术大牛带<br><br>职位描述：<br>配合架构师和机器学习专家，完成项目的编码、测试和上线。<br><br>我们期望：<br>1. 211院校计算机相关专业本科以上学历；<br>2. 有扎实的编程和计算机基础，熟悉常用算法和数据结构。<br>3. 具有很强的问题解决能力，综合知识（或者通过搜索能快速掌握知识）强，了解前端、网络、多线程、数据库、Web开发等知识。<br>4. 2年以上工作经验（Python或者JAVA方向，如果编程能力特别过硬可以放开语言要求）；<br><br>工作内容：<br>1. 根据业务需求进行需求分析和代码编写；<br>2. 结合系统实现对代码进行充分的自测，以及配合测试工程师联合进行测试；<br>3. 配合机器学习算法专家进行代码编写</p>
</div>
</dd>
"""
re
.sub
(r
"<.*>", "", html_str
)
re
.sub
(r
"<\w*>", "", html_str
)
re
.match
(r
"\w", " ")
re
.match
(r
"\w", "a")
re
.match
(r
"\w", "_")
re
.sub
(r
"<[^>]*>", "", html_str
)
html_str
= """
<dd class="job_bt">
<h3 class="description">职位描述：</h3>
<div>
<p>职位诱惑：<br>机器学习相关项目，完全新技术驱动，互联网公司，工作氛围好，扁平管理，有技术大牛带<br><br>职位描述：<br>配合架构师和机器学习专家，完成项目的编码、测试和上线。<br><br>我们期望：<br>1. 211院校计算机相关专业本科以上学历；<br>2. 有扎实的编程和计算机基础，熟悉常用算法和数据结构。<br>3. 具有很强的问题解决能力，综合知识（或者通过搜索能快速掌握知识）强，了解前端、网络、多线程、数据库、Web开发等知识。<br>4. 2年以上工作经验（Python或者JAVA方向，如果编程能力特别过硬可以放开语言要求）；<br><br>工作内容：<br>1. 根据业务需求进行需求分析和代码编写；<br>2. 结合系统实现对代码进行充分的自测，以及配合测试工程师联合进行测试；<br>3. 配合机器学习算法专家进行代码编写</p>
</div>
</dd>
"""
re
.sub
(r
"<[^>]*>|\s", "", html_str
)
re
.sub
(r
"<[^>]*>|\s| ", "", html_str
)
re
.sub
(r
"<.*>", "", html_str
)
re
.sub
(r
"<\w*>", "", html_str
)
re
.sub
(r
"<.*?>", "", html_str
)
s
= "This is a number 234-235-22-423"
re
.match
(r
".*\d{3}-\d{3}-\d{2}-\d{3}", s
).group
()
re
.match
(r
".*(\d{3}-\d{3}-\d{2}-\d{3})", s
).group
()
re
.match
(r
".*(\d{3}-\d{3}-\d{2}-\d{3})", s
).group
(1)
re
.match
(r
".*(\d+-\d+-\d+-\d+)", s
).group
()
re
.match
(r
".*(\d+-\d+-\d+-\d+)", s
).group
(1)
re
.match
(r
".*?(\d+-\d+-\d+-\d+)", s
).group
(1)
meizi_image
= """<img data-original="https://rpic.douyucdn.cn/appCovers/2017/05/19/1740975_20170519162941_big.jpg" src="https://rpic.douyucdn.cn/appCovers/2017/05/19/1740975_20170519162941_big.jpg" width="283" height="163" style="display: block;">"""
re
.match
(r
"https://.*\.jpg", meizi_image
)
re
.search
(r
"https://.*\.jpg", meizi_image
)
re
.search
(r
"https://.*\.jpg", meizi_image
).group
()
re
.search
(r
"https://.*?\.jpg", meizi_image
).group
()
my_path
= "c:\a\b\c"
print(my_path
)
my_path
= "c:\\a\\b\\c"
print(my_path
)
re
.match
("c:", my_path
)
re
.match
("c:", my_path
).group
()
re
.match
("c:\\a", my_path
).group
()
re
.match
("c:\\\\a", my_path
).group
()
print(re
.match
("c:\\\\a", my_path
).group
())
print(re
.match
("c:\\\\a\\\\b", my_path
).group
())
print(re
.match
("c:\\\\a\\\\b\\\\c", my_path
).group
())
print(re
.match
(r
"c:\\a\\b\\c", my_path
).group
())
