<__main__.0x02C08790处的对象> [英] <__main__. object at 0x02C08790>
问题描述
我一直在接受
<__main__.Camera object at 0x02C08790>
我不知道为什么.
我希望代码基本上在循环中从 Calc_Speed 转到 Counter,然后返回到 Calc_Speed.
I would like the code to go from Calc_Speed to Counter and then back to Calc_Speed basically in a loop.
class Camera():
distance = 2
speed_limit = 20
number_of_cars = 0
def Calc_Speed(self):
registration = input("Registration Plate: ")
Speeding_List=[]
start = float(input("Start time: "))
end = float(input("End Time: "))
speed = self.distance/(end-start)
print(("Average Speed: ") + str(round(speed, 2)) + (" mph"))
if speed > self.speed_limit:
list3= [str(self.registration)]
Speeding_List.append(list3)
print("Vehicles Caught Speeding: " + str(Speeding_List))
return(program.Counter())
else:
print("Vehicle Not Speeding")
return(program.Counter())
def Counter():
self.number_of_cars = self.number_of_cars + 1
print("Number Of Cars Recorded: " + str(self.number_of_cars))
return(program.Calc_Speed())
program = Camera()
print(program)
推荐答案
当你只是打印一个对象时,它会显示对象 id(例如 <__main__.Camera object at 0x02C08790>
),即对我们凡人来说是完全无法理解的.您可以通过定义 __str__
或 __repr__
函数来以自定义方式显示实例的数据来解决此问题.
When you just print an object, it shows the object id (like <__main__.Camera object at 0x02C08790>
), which is totally indecipherable to us mortals. You can get around this by defining a __str__
or __repr__
function to display the data for the instance in a custom way.
就你而言:
def __repr__(self):
return "<__main__.Camera: distance = " + str(self.distance) + "; speed_limit = " + str(self.speed_limit) + "; number_of_cars = " + str(self.number_of_cars) + ">"
如果有一个带有起始变量值的 Camera
实例,它将返回
If there were an instance of Camera
with the starting variable values, it would return
"<__main__.Camera: distance = 2; speed_limit = 20; number_of_cars = 0>"
.
<__main__.Camera object at 0x02C08790>
是系统记住它的方式,但除了显示它是什么类型的对象之外,它几乎没有用.
The <__main__.Camera object at 0x02C08790>
is the how the system remembers it, but aside from showing what type of object it is, it's mostly useless.
这篇关于<__main__.0x02C08790处的对象>的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!