发布于 2016-01-05 04:57:44 | 187 次阅读 | 评论: 0 | 来源: PHPERZ
这里有新鲜出炉的Python3 官方中文指南,程序狗速度看过来!
Python编程语言
Python 是一种面向对象、解释型计算机程序设计语言,由Guido van Rossum于1989年底发明,第一个公开发行版发行于1991年。Python语法简洁而清晰,具有丰富和强大的类库。它常被昵称为胶水语言,它能够把用其他语言制作的各种模块(尤其是C/C++)很轻松地联结在一起。
闲话不多,走一遍简单的代码!
#encoding=utf-8
import re
s = "My Name is Candy!"
print re.findall("\\b\w.+$",s)
print re.findall("^\w.+$",s)
结果:
C:\Python27\python.exe D:/ProjectSpace/file-example.py
['My Name is Candy!']
['My Name is Candy!']
Process finished with exit code 0
\w : 匹配任意数字、字母、下划线
\W: 匹配任意非数字、字母、下划线
\b : 匹配字符串开头或结尾
\B : 匹配字符串开头或结尾
\s : 匹配空白符
\S : 匹配非空白符
\d : 匹配任意数字
\D: 匹配任意非数字
有了以上知识,我们下面就直接走几个例子!
匹配字符串内包含 Candy 或者 !的地方:
#encoding=utf-8
import re
s = "My Name is Candy!"
print re.findall("Candy|!",s)
结果:
C:\Python27\python.exe D:/ProjectSpace/file-example.py
['Candy', '!']
Process finished with exit code 0
匹配字符串内所有内容:
#encoding=utf-8
import re
s = """
My Name is Candy!
Welcome To My Home!
Are You ok?
"""
print re.findall("\\b\w.+\\b",s)
结果:
C:\Python27\python.exe D:/ProjectSpace/file-example.py
['My Name is Candy', 'Welcome To My Home', 'Are You ok']
Process finished with exit code 0
匹配字符串内所有以问号结尾的内容:
#encoding=utf-8
import re
s = """
My Name is Candy!
Who tell You My Name?
Welcome To My Home!
Are You ok?
"""
for i in re.findall("(.+\?\n)",s):
print re.sub("\\n.?",'',i)
结果:
C:\Python27\python.exe D:/ProjectSpace/file-example.py
Who tell You My Name?
Are You ok?
Process finished with exit code 0
匹配字符串内所有以‘W’开头的行的内容:
#encoding=utf-8
import re
s = """
My Name is Candy!
Who tell You My Name?
Welcome To My Home!
Are You ok?
"""
for i in re.findall("\\bW.+",s):
print i
结果:
C:\Python27\python.exe D:/ProjectSpace/file-example.py
Who tell You My Name?
Welcome To My Home!
Process finished with exit code 0
匹配字符串内所有包含‘My’的行的内容:
#encoding=utf-8
import re
s = """
My Name is Candy!
Who tell You My Name?
Welcome To My Home!
Are You ok?
"""
for i in re.findall(".*My.+",s):
print i
结果:
C:\Python27\python.exe D:/ProjectSpace/file-example.py
My Name is Candy!
Who tell You My Name?
Welcome To My Home!
Process finished with exit code 0
哎! 半夜三更发的帖子, 今天就到这吧! 此处列举的也许不是最好的匹配方法,大家可以自己进行尝试。