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我正在为我在学校的一个班级进行任务,我需要将两个列表连接在一起。我使用的代码:在python中连接列表时出错
flowers = ["rose", "bougainvillea", "yukka", "marigold", "daylily", "lily of the valley"]
thorny = flowers[0:3]
poisonous = flowers[-1]
dangerous = flowers[0:3] + flowers[-1]
我不断收到错误消息:
dangerous = list(set(flowers[0:3] + flowers[-1]))
TypeError: can only concatenate list (not "str") to list
我想知道为什么这是行不通的。谢谢!
'dangerous = flowers [0:3] + flowers [-1:]' – ozgur