如何在 Python 中创建多个 类 实例？

Question

我需要创建 189 个包含字符串的 class.Name 实例。 我怎样才能做到这一点？

以下代码无效。

def naming_of_sequence_neurons():
    letters_list = ["a", "b", "c", "d", "e", "f", "g",
                    "h", "i", "k", "l", "m", "n", "p",
                    "q", "r", "s", "t", "v", "w", "y"]

    input_neuron_web = []

    def naming_cycle(number):

        for j in range(0, 21):
            input_neuron_web[j][number] = Neuron.name = (letters_list[j] + str(number))

    for i in range(0, 9):
        naming_cycle(i)

    return input_neuron_web

inputed = naming_of_sequence_neurons()

for a in range(0, 21):
    for b in range(0, 9):
        print(inputed[a][b].name)

Answer 1

问题似乎是您正在为尚不存在的索引赋值。这不适用于 Python 列表。

假设 Neuron 是一个合理的 well-behaved 对象，这可能有效：

def naming_of_sequence_neurons():
    letters_list = ["a", "b", "c", "d", "e", "f", "g",
                    "h", "i", "k", "l", "m", "n", "p",
                    "q", "r", "s", "t", "v", "w", "y"]
    input_neuron_web = []
    for number in range(0, 9):
        new_list = []
        for j in range(0,21):
            new_neuron = Neuron()
            new_neuron.name = letters_list[j] + str(number)
            new_list.append(new_neuron)
        input_neuron_web.append(new_list)
    return input_neuron_web