如何拆分带有随机数和随机数下划线的字符串？

import re

def split_string_with_random_number(string):
    pattern = r'\d+_'
    matches = re.findall(pattern, string)
    substrings = re.split(pattern, string)
    result = []
    for i in range(len(substrings)):
        if i < len(matches):
            result.append(substrings[i] + matches[i])
        else:
            result.append(substrings[i])
    return result

# 示例用法
string = "abc123_def456_ghi789"
result = split_string_with_random_number(string)
print(result)

['abc123_', 'def456_', 'ghi789']