Python字符串匹配

Python string match

提问by Rajeev

If a string contains *SUBJECT123, how do I determine that the string has subjectin it in python?

如果字符串包含*SUBJECT123，我如何确定该字符串subject在 python 中是否存在？

采纳答案by ghostdog74

if "subject" in mystring.lower():
  # do something

回答by Felix Kling

If you want to have subjectmatch SUBJECT, you could use re

如果你想有subject比赛SUBJECT，你可以使用re

import re
if re.search('subject', your_string, re.IGNORECASE)

Or you could transform the string to lower case first and simply use:

或者您可以先将字符串转换为小写，然后简单地使用：

if "subject" in your_string.lower()

回答by Douglas Leeder

if "*SUGJECT123" in mystring and "subject" in mystring:
    # do something

回答by Ankit Jaiswal

Just another way

只是另一种方式

mystring.find("subject")

the above answers will return true if the string contains "subject" and false otherwise. While find will return its position in the string if it exists else a negative number.

如果字符串包含“主题”，则上述答案将返回 true，否则返回 false。如果 find 存在，则 find 将返回其在字符串中的位置，否则为负数。