python赋值运算符如何使用

a, *b, c = 1, 2, 3, 4

print(a, b, c)  # 1 [2, 3] 4

a, b, *c = 1, 2, 3, 4

print(a, b, c)  # 1 2 [3, 4]

*a, b, c = 1, 2, 3, 4

print(a, b, c)  # [1, 2] 3 4

a, *b, c = 1, 2

print(a, b, c)  # 1 [] 2