python递归调用，多维度变化为一个维度，一个维度变化为多个维度

multi_dimension.py

# 多维度切为单维度
def go(params):
    ret = {}
    for(key,value) in params.items():
        if type(value) == str:
            ret[key] = value
        elif type(value) == dict:
            for (k1,v1) in value.items():
                new_key = key + "." + k1
                new_dict = {new_key: v1}
                ret.update(go(new_dict))
    return ret

# 单维度切回多维度
def back(params):
    ret = {}
    for(key, value) in params.items():
        is_find = key.find(".")
        if is_find <= 0:
            ret[key] = value
            continue
        new_parent_key = key.split(".")[0]
        new_key = key.replace(new_parent_key+".", "")
        is_find = new_key.find(".")
        if is_find <= 0:
            ret[new_parent_key] = {new_key: value}
            continue
        new_params = {new_key: value}
        ret[new_parent_key].update(back(new_params))

    return ret

params = {
    "a": "a",
    "b": {
        "c": "c",
        "d": {
            "d": "d"
        },
    }
}
print(params)
params = go(params)
print(params)
params = back(params)
print(params)