设计一个MyPoint类，表示具有x坐标和y坐标的点

class MyPoint:
def __init__(self, x, y):
self.x = x
self.y = y

def __str__(self):
return "Point(" + str(self.x) + ", " + str(self.y) + ")"

def distance(self, other_point):
return ((self.x - other_point.x) ** 2 + (self.y - other_point.y) ** 2) ** 0.5

def move(self, dx, dy):
self.x += dx
self.y += dy