正则表达式获取字符之间的字符串(不包括)

(?<=startChar)(.*?)(?=endChar)

import re

def get_string_between_chars(text, start_char, end_char):
    pattern = r'(?<={})(.*?)(?={})'.format(re.escape(start_char), re.escape(end_char))
    match = re.search(pattern, text)
    if match:
        return match.group(0)
    else:
        return None

text = "This is a sample text. StartABCThis is the string I want to extractEndDEFThis is another sample text."
start_char = "ABC"
end_char = "DEF"
result = get_string_between_chars(text, start_char, end_char)
print(result)

This is the string I want to extract