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[英]Find all (including overlapping) substrings matching a regular expression in Python
[英]how to find all overlapping substrings of length k in a sample string in python
str1 = "ABCDEF"
我想在上面的字符串中找到長度為 3 的所有子字符串的列表,包括重疊例如:
list1 = ['ABC','BCD','CDE','DEF']
我嘗試了以下方法,但它錯過了重疊:
n = 3
lst = [str1[i:i+n] for i in range(0, len(str1), n)]
x = "ABCDEF"
print ([x[i:i+3] for i in range(len(x)-2)])
Output:
['ABC', 'BCD', 'CDE', 'DEF']
更普遍:
x = "ABCDEF"
n = 2
print ([x[i:i+n] for i in range(len(x)-n+1)])
Output:
['AB', 'BC', 'CD', 'DE', 'EF']
更一般地說:
x = "ABCDEF"
for n in range(len(x)+1):
print ([x[i:i+n] for i in range(len(x)-n+1)])
Output:
['', '', '', '', '', '', '']
['A', 'B', 'C', 'D', 'E', 'F']
['AB', 'BC', 'CD', 'DE', 'EF']
['ABC', 'BCD', 'CDE', 'DEF']
['ABCD', 'BCDE', 'CDEF']
['ABCDE', 'BCDEF']
['ABCDEF']
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