我可以使具有相同值的不同变量指向不同的对象吗? [英] Can i make different variables of same values point to diffrent objects?

问题描述

我认为这个问题可能已经在SO上找到了答案，但我似乎找不到.如果找到答案，请将其标记为重复.

I think this question might already have an answer here on SO, but I can't seem to find it. Please mark it as duplicate if you find an answer.

我不是在问为什么，但是我怎么不能让这种事情发生呢?

我希望j与i具有不同的id.

I want j to have a diffrent id than i.

说我做什么，

>>> i = 6
>>> j = 6
>>> id(i) 
10919584
>>> id(j)
10919584 #I don't want this, I want j to point to a different object

所以，我得到了上面代码中发生的事情(或者至少我认为是这样)，但是我的问题是如何防止这种情况发生?

So, I get what happens in the code above(Or at least I think I do), but my question is how can I prevent it?

我只是出于好奇而问，它可能没有实际用途或相关性.

推荐答案

对此的可能用法有些奇怪；我找到的选项:

A bit weirded by the possible uses of this; the option I've found:

class NoFixedInt(int):
  pass

a = NoFixedInt(6)
b = NoFixedInt(6)
c = NoFixedInt(6)

print id(a)
# 4485155368
print id(b)
# 4485155656
print id(c)
# 4485155728

当然，我不知道这是否对您有用，因为它存在您必须强制转换所有内容的问题，但确实可以解决问题.

Of course, I don't know if this works for you, as it has the issue that you have to cast everything, but it does the trick.

这篇关于我可以使具有相同值的不同变量指向不同的对象吗?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！