我现在对Python中的lambda运算符有点困惑.以下(工作)代码在所有元组的第一个元素上出现元组第一个元素的次数之后对元组列表进行排序:
tuples = [(2, 1, 8, 4), (3, 4, 8, 1), (3, 8, 1, 4), (4, 1, 8, 3),
(4, 8, 1, 3), (8, 8, 3, 1), (8, 1, 3, 4), (8, 4, 1, 3),
(8, 4, 3, 1)]
temp = list(zip(*tuples))
tuples.sort(key=lambda x: temp[0].count(x[0])
,reverse=True)
print(tuples)
但是,如果我现在尝试跳过创建"temp",即写下:
tuples = [(2, 1, 8, 4), (3, 4, 8, 1), (3, 8, 1, 4), (4, 1, 8, 3),
(4, 8, 1, 3), (8, 8, 3, 1), (8, 1, 3, 4), (8, 4, …