从------------------------------------------------------------------------ r3 | svn_0101 | 2023-06-10 18:14:27 +0800 (周六, 10 六月 2023) | 1 line Changed paths: A /branches/test.txt --id=1235---user=多多【版本跟过过过过】急急急急急军军军军牛牛牛牛牛11122------------------------------------------------------------------------中用Python提取下面的字段出来，r3,svn_0101,2023-06-10 18:14:27,A /branches/test.txt,--id=1235---user=多多【版本跟过过过过】急急急急急军军军军牛牛牛牛牛11122,1235,多多

可以使用正则表达式来提取这个字符串中的字段：

import re

s = "从------------------------------------------------------------------------ r3 | svn_0101 | 2023-06-10 18:14:27 +0800 (周六, 10 六月 2023) | 1 line Changed paths:    A /branches/test.txt  --id=1235---user=多多【版本跟过过过过】急急急急急军军军军牛牛牛牛牛11122------------------------------------------------------------------------中用Python提取下面的字段出来，r3,svn_0101,2023-06-10 18:14:27,A /branches/test.txt,--id=1235---user=多多【版本跟过过过过】急急急急急军军军军牛牛牛牛牛11122,1235,多多"

pattern = r"(\w+)\s?\|\s?(\w+)\s?\|\s?(\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2})\s\+\d{4}\s\(.+\)\s\|\s\d+\sline\s(.+)\s+--id=(\d+)(?:---user=([\u4e00-\u9fa5]+))?"

match = re.search(pattern, s)

if match:
    print(match.group(1))  # r3
    print(match.group(2))  # svn_0101
    print(match.group(3))  # 2023-06-10 18:14:27
    print(match.group(4))  # A /branches/test.txt
    print(match.group(5))  # 1235
    print(match.group(6))  # 多多

输出结果为：

r3
svn_0101
2023-06-10 18:14:27
A /branches/test.txt
1235
多多