Collider2D.attachedRigidbody

# [Collider2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Collider2D.html).attachedRigidbody

public [Rigidbody2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Rigidbody2D.html) **attachedRigidbody** ;

## 描述

附加到 [Collider2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Collider2D.html) 的 [Rigidbody2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Rigidbody2D.html)。

[Collider2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Collider2D.html) 自动附加到与 [Collider2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Collider2D.html) 相同的 [GameObject](https://docs.unity3d.com/cn/2019.4/ScriptReference/GameObject.html) 上的 [Rigidbody2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Rigidbody2D.html)，或者如果都不存在，则附加到最近父 [GameObject](https://docs.unity3d.com/cn/2019.4/ScriptReference/GameObject.html) 上的 [Rigidbody2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Rigidbody2D.html)。如果未附加 [Rigidbody2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Rigidbody2D.html)，则该属性将为 null。在这种情况下，[Collider2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Collider2D.html) 附加到一个位于世界原点的隐藏体，称为地面体，因为它设置为 [RigidbodyType2D.Static](https://docs.unity3d.com/cn/2019.4/ScriptReference/RigidbodyType2D.Static.html)。但该隐藏体不可引用。

另请参阅：[Rigidbody2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/Rigidbody2D.html)、[RigidbodyType2D](https://docs.unity3d.com/cn/2019.4/ScriptReference/RigidbodyType2D.html)。

```
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public Vector2 force = Vector2.up;

void Start()
    {
        // Apply a force to the rigidbody attached to the collider.
        GetComponent<Collider2D>().attachedRigidbody.AddForce(force);
    }
}
```