匹配两个分隔符之间的所有文本，添加字符串，并缩进

import re

def add_string_between_delimiters(text, delimiter1, delimiter2, add_string, indent):
    pattern = delimiter1 + '(.*?)' + delimiter2
    match = re.search(pattern, text)
    while match:
        matched_text = match.group(1)
        replacement = delimiter1 + matched_text + add_string + '\n' + indent + delimiter2
        text = text.replace(delimiter1 + matched_text + delimiter2, replacement)
        match = re.search(pattern, text)
    return text

# 示例用法
text = '这是分隔符1文本1分隔符2，这是分隔符1文本2分隔符2。'
delimiter1 = '分隔符1'
delimiter2 = '分隔符2'
add_string = '添加的字符串'
indent = '    '

result = add_string_between_delimiters(text, delimiter1, delimiter2, add_string, indent)
print(result)

这是分隔符1文本1添加的字符串
    分隔符2，这是分隔符1文本2添加的字符串
    分隔符2。