Python |基于子字符串列表过滤字符串列表
原文:https://www . geesforgeks . org/python-filter-list-基于字符串的子字符串列表/
给定两个字符串列表字符串和子字符串，编写一个 Python 程序过滤掉字符串中包含子字符串中字符串的所有字符串。
示例:
Input : string = ['city1', 'class5', 'room2', 'city2']
substr = ['class', 'city']
Output : ['city1', 'class5', 'city2']
Input : string = ['coordinates', 'xyCoord', '123abc']
substr = ['abc', 'xy']
Output : ['xyCoord', '123abc']
方法#1 : 使用列表理解
我们可以在运算符中使用列表理解和来检查“substr”中的字符串是否包含在“string”中。
# Python3 program to Filter list of
# strings based on another list
import re
def Filter(string, substr):
return [str for str in string if
any(sub in str for sub in substr)]
# Driver code
string = ['city1', 'class5', 'room2', 'city2']
substr = ['class', 'city']
print(Filter(string, substr))
Output:
['city1', 'class5', 'city2']
方法 2 : Python 正则表达式
# Python3 program to Filter list of
# strings based on another list
import re
def Filter(string, substr):
return [str for str in string
if re.match(r'[^\d]+|^', str).group(0) in substr]
# Driver code
string = ['city1', 'class5', 'room2', 'city2']
substr = ['class', 'city']
print(Filter(string, substr))
Output:
['city1', 'class5', 'city2']
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