不能修改返回值，因为它不是一个变量 [英] Cannot Modify Return Value because It is not a Variable

问题描述

按值罢工再次通过!!

Pass by Value strikes again!!

player.Vector.X += player.Speed * (float)gameTime.ElapsedGameTime.TotalSeconds;

不起作用。

does not work.

Vector2 v = player.Vector;
v.X -= player.Speed * (float)gameTime.ElapsedGameTime.TotalSeconds;
player.Vector = v;

修复了这个问题。

fixes this problem.

这是这里解释：不能修改XNA矢量组成

回答得非常好解释和工作得很好，但它已4年，因为它被张贴。 我的问题是，既然它已经4年了，有没有更好的办法，现在解决这个问题？

The answer was very well explained and works just fine, but it has been 4 years since it was posted. My question is, since its been 4 years, is there a better way to fix this problem now?

我对100的这种行我需要修复，并希望能有一些快捷的现在。

I have about 100 lines of this I need to fix, and was hoping there was some sort of shortcut by now.

推荐答案

有可能永远不会成为一个快捷方式这个，因为它是值类型和引用类型之间的根本区别的一个特征。

There is probably never going to be a "shortcut" for this since it's a feature of the fundamental difference between value types and reference types.

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