Python 如何在IntegerProperty和int之间进行算术运算 class MainHandler（webapp2.RequestHandler）： def post（自我）： 用户\停车位=停车位（） user_spot.location_X=有效载荷['location_X'] 用户_spot.location_Y=有效载荷['location_Y'] 查询=无 query=parking.query（parking.location\u X-10>=user\u spot.location\u X，parking.location\u X+10

确定我找到了解决方案 query=parking.query（parking.location\u X 10>=用户\u spot.location\u X-10，parking.location\u X

class MainHandler(webapp2.RequestHandler):
    def post(self):
        user_spot = parking()
        user_spot.location_X = payload['location_X']
        user_spot.location_Y = payload['location_Y']               
        query = None
        query = parking.query(parking.location_X - 10>= user_spot.location_X ,parking.location_X + 10 <= user_spot.location_X)