我完全不知道為什么我得到錯誤Traceback (most recent call last):  File ".../minimal.py", line 8, in <module>    obj = Clazz([0], [[0], [0]], [[0]])  File ".../minimal.py", line 5, in __init__    self.c = cAttributeError: 'list' object has no attribute 'c'從下面的代碼class Clazz(object):    def __init__(self, a, b, c):        self.a = a        self,b = b        self.c = cif __name__ == "__main__":    obj = Clazz([0], [[0], [0]], [0])當我只通過obj = Clazz([0], [0], [0])我收到以下錯誤：Traceback (most recent call last):  File ".../minimal.py", line 8, in <module>    obj = Clazz([0], [[0], [0]], [0])  File ".../minimal.py", line 4, in __init__    self,b = bValueError: need more than 1 value to unpack我試圖用谷歌搜索，但是那里沒有類似的問題。怎么會這樣 這些錯誤的原因是什么？