用python写一段运算两个数点乘和叉乘的运算

点乘运算：

a = [1, 2, 3]
b = [4, 5, 6]

dot_product = sum([a[i]*b[i] for i in range(len(a))])

print("Dot product: ", dot_product)

输出：

Dot product:  32

叉乘运算：

a = [1, 2, 3]
b = [4, 5, 6]

cross_product = [a[1]*b[2]-a[2]*b[1], a[2]*b[0]-a[0]*b[2], a[0]*b[1]-a[1]*b[0]]

print("Cross product: ", cross_product)

输出：

Cross product:  [-3, 6, -3]