Python re模塊
閑話不多，走一遍簡單的代碼！
#encoding=utf-8
import re
s = "My Name is Candy!"
print re.findall("\\b\w.+$",s)
print re.findall("^\w.+$",s)
結果：
C:\Python27\python.exe D:/ProjectSpace/file-example.py
['My Name is Candy!']
['My Name is Candy!']
Process finished with exit code 0
\w ： 匹配任意數字、字母、下劃線
\W： 匹配任意非數字、字母、下劃線
\b ： 匹配字符串開頭或結尾
\B ： 匹配字符串開頭或結尾
\s ： 匹配空白符
\S ： 匹配非空白符
\d ： 匹配任意數字
\D： 匹配任意非數字
有了以上知識，我們下面就直接走幾個例子！
匹配字符串內包含 Candy 或者 ！的地方：
#encoding=utf-8
import re
s = "My Name is Candy!"
print re.findall("Candy|!",s)
結果：
C:\Python27\python.exe D:/ProjectSpace/file-example.py
['Candy', '!']
Process finished with exit code 0
匹配字符串內所有內容：
#encoding=utf-8
import re
s = """
My Name is Candy!
Welcome To My Home!
Are You ok?
"""
print re.findall("\\b\w.+\\b",s)
結果：
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
匹配字符串內所有以問號結尾的內容：
#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)
結果：
C:\Python27\python.exe D:/ProjectSpace/file-example.py
Who tell You My Name?
Are You ok?
Process finished with exit code 0
匹配字符串內所有以‘W’開頭的行的內容：
#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
結果：
C:\Python27\python.exe D:/ProjectSpace/file-example.py
Who tell You My Name?
Welcome To My Home!
Process finished with exit code 0
匹配字符串內所有包含‘My’的行的內容：
#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
結果：
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！ 半夜三更發的帖子， 今天就到這吧！ 此處列舉的也許不是最好的匹配方法，大家可以自己進行嘗試。
本文由用戶 jopen 自行上傳分享，僅供網友學習交流。所有權歸原作者，若您的權利被侵害，請聯系管理員。
轉載本站原創文章，請注明出處，并保留原始鏈接、圖片水印。
本站是一個以用戶分享為主的開源技術平臺，歡迎各類分享！