正则表达式 -- 提取并替换 ${} 之间的内容

import re


def my_split(resource_data: str, split_content: dict):
    """
    :param resource_data: 被替换的原数据
    :param split_content: 需要替换的内容
    """
    matches = re.findall(r"(?<=\$\{).*?(?=\})", resource_data)  # 提取需要替换的目标

    new_data = None  # 替换后的数据
    for i in matches:  # 替换过程
        new_value = split_content[i]
        if i == matches[0]:
            new_data = resource_data.replace("${" + i + "}", str(new_value))
        else:
            new_data = new_data.replace("${" + i + "}", str(new_value))
    return new_data


# 开始调试
old_data = ‘{"access-token": "${token}", "data": ${user_id}, "phone_code": ${code}}‘
spilt_data = {"token": "123asf6549qewA+-*asd", "user_id": [1, 2, 3, 4], "code": 1356}

new_data0 = my_split(old_data, spilt_data)
print(new_data0)  # {"access-token": "123asf6549qewA+-*asd", "data": [1, 2, 3, 4], "phone_code": 1356}
data_dict = eval(new_data0)
print(type(data_dict["access-token"]))  # <class ‘str‘>
print(type(data_dict["data"]))  # <class ‘list‘>
print(type(data_dict["phone_code"]))  # <class ‘int‘>