两个list的对应元素操作，这里以相减为例：

# coding=gbkv1 = [21, 34, 45]
v2 = [55, 25, 77]#v = v2 - v1			# Error: TypeError: unsupported operand type(s) for -: 'list' and 'list'
v = list(map(lambda x: x[0]-x[1], zip(v2, v1)))
print("%s\n%s\n%s" %(v1, v2, v))

运行结果：

E:\Program\Python>del.py
[21, 34, 45]
[55, 25, 77]
[34, -9, 32]