Question

我想搜索子字符串＆＃34; can＆＃t; t＆＃34;在Python中的字符串中。这是代码：

astring = "I cant figure this out"
if "can\'t" in astring:
    print "found it"
else:
    print "did not find it"

上面应该打印＆＃34;没有找到它＆＃34;但是它打印＆＃34;发现它＆＃34;。如何正确转义单引号字符？

Answer 1

astring = "I can't figure this out"    
if 'can\'t' in astring:
        print('yes')

Answer 2

你必须在报价之前添加\。

astring = "I cant figure this out"

if "can\'t" in astring:
    print "found it"
else:
    print "did not find it"

或者你可以使用“find”方法，例如：

if astring.find("can\'t")>-1:
    print "found it"
else:
    print "did not find it"

Answer 3

一种方法是将字符串和正则表达式定义为原始字符串。然后，使用＆＃34;＆＃39; t＆＃34;。

查找单词模式

Sequence = Convert.ToInt32(fti.ItemName.Substring(fti.ItemName.LastIndexOf("_")+1))

输出

import re

string = r"can cant can't"
re_pattern = r"(\S+'t)"
re_obj = re.compile(re_pattern)
match = re_obj.findall(string)
if match:
    print(match)
else:
    print("no match found")

如何在Python中搜索字符串内带引号的子字符串？

3 个答案: