Python:如何按字母-数字与数字分组拆分字符串

import re

def split_string(string):
    pattern = r"(\D+)(\d+)"
    result = re.split(pattern, string)
    return result

string = "A1B2C3D4"
result = split_string(string)
print(result)

['A', '1', 'B', '2', 'C', '3', 'D', '4']

def split_string(string):
    result = []
    current_group = ""
    for char in string:
        if char.isalpha() and current_group.isdigit():
            result.append(current_group)
            current_group = char
        elif char.isdigit() and current_group.isalpha():
            result.append(current_group)
            current_group = char
        else:
            current_group += char
    result.append(current_group)
    return result

string = "A1B2C3D4"
result = split_string(string)
print(result)

['A', '1', 'B', '2', 'C', '3', 'D', '4']