从另一个脚本C＃访问变量 [英] Accessing a variable from another script C#

问题描述

你能告诉我如何从另一个脚本访问脚本的变量？我甚至已经阅读团结一切网站，但我还是无法做到这一点。我知道如何访问另一个对象而不是另一个变量。

Can you tell me how to access a variable of a script from another script ? I have even read everything in unity website but I still can’t do it. I know how to access another object but not another variable.

这是这种情况：
我在脚本中的乙我要访问的变量 X 是来自脚本的 A 。变量 X 是布尔。
你能帮助我吗？

This is the situation : I’m in script B and I want to access the variable X from script A. The variable X is boolean. Can you help me ?

顺便说一句，我需要更新 X 的价值costantly在脚本中的乙，我该怎么做呢？访问它更新功能
如果你可以给我，例如以这些字母将是伟大的！

Btw i need to update X’s value costantly in script B , how do I do that ? Access it in Update function If you could give me and example with these letters would be great !

感谢您

推荐答案

您首先需要获得变量的脚本部件，如果他们在不同的游戏对象，你需要通过游戏对象为在检查的参考。

You first need to get the script component of the variable, and if they're in different game objects, you'll need to pass the Game Object as a reference in the inspector.

例如，我有 scriptA.cs 在游戏物体A 和 scriptB.cs 在游戏物体乙：

scriptA.cs

// make sure its type is public so you can access it later on
public bool X = false;

scriptB.cs

public GameObject a; // you will need this if scriptB is in another GameObject
                     // if not, you can omit this
                     // you'll realize in the inspector a field GameObject will appear
                     // assign it just by dragging the game object there
public scriptA script; // this will be the container of the script

void Start(){
    // first you need to get the script component from game object A
    // getComponent can get any components, rigidbody, collider, etc from a game object
    // giving it <scriptA> meaning you want to get a component with type scriptA
    // note that if your script is not from another game object, you don't need "a."
    // script = a.gameObject.getComponent<scriptA>(); <-- this is a bit wrong, thanks to user2320445 for spotting that
    // don't need .gameObject because a itself is already a gameObject
    script = a.getComponent<scriptA>();
}

void Update(){
    // and you can access the variable like this
    // even modifying it works
    script.X = true;
}

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