如何使用Python类编写我自己的点积？

class DotProduct:
    def __init__(self, vector1, vector2):
        self.vector1 = vector1
        self.vector2 = vector2

    def calculate(self):
        if len(self.vector1) != len(self.vector2):
            raise ValueError("Vectors must have the same length")

        result = 0
        for i in range(len(self.vector1)):
            result += self.vector1[i] * self.vector2[i]

        return result

vector1 = [1, 2, 3]
vector2 = [4, 5, 6]

dot_product = DotProduct(vector1, vector2)
result = dot_product.calculate()

print(result)  # 输出：32