从嵌套的字典中查找值

def find_value(nested_dict, key):
    for k, v in nested_dict.items():
        if k == key:
            return v
        elif isinstance(v, dict):
            result = find_value(v, key)
            if result is not None:
                return result
    return None

data = {
    'a': {
        'b': {
            'c': 'value'
        }
    }
}

result = find_value(data, 'c')
print(result)  # 输出: value