Python搜索嵌套列表

def linear_search_nested_list(nested_list, target):
    for sublist in nested_list:
        for item in sublist:
            if item == target:
                return True
    return False

# 使用示例
nested_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
print(linear_search_nested_list(nested_list, 5))  # 输出: True

def recursive_search(nested_list, target):
    for element in nested_list:
        if isinstance(element, list):
            if recursive_search(element, target):
                return True
        else:
            if element == target:
                return True
    return False

# 使用示例
deep_nested_list = [1, [2, [3, 4, [5, 6]]], 7]
print(recursive_search(deep_nested_list, 5))  # 输出: True

def search_with_any(nested_list, target):
    return any(target in sublist for sublist in nested_list)

# 使用示例
print(search_with_any(nested_list, 10))  # 输出: False