type | 要检索的组件的类型。 |
如果游戏对象附加了类型为 type
的组件,则将其返回,否则返回 null。
使用 gameObject.GetComponent 将返回找到的第一个组件,并且未定义顺序。如果预期存在多个相同类型的组件,请改用 gameObject.GetComponents,并针对某些唯一的属性循环使用返回的组件测试。
using UnityEngine;
public class GetComponentExample : MonoBehaviour { void Start() { HingeJoint hinge = gameObject.GetComponent(typeof(HingeJoint)) as HingeJoint;
if (hinge != null) hinge.useSpring = false; } }
Generic version of this method.
using UnityEngine;
public class GetComponentGenericExample : MonoBehaviour { void Start() { HingeJoint hinge = gameObject.GetComponent<HingeJoint>();
if (hinge != null) hinge.useSpring = false; } }
type | 要检索的组件的类型。 |
如果游戏对象附加了名为 type
的组件,则将其返回,否则返回 null。
出于性能原因,最好使用具有类型而不是字符串的 GetComponent。 但有时可能无法访问该类型,例如在尝试从 Javascript 访问 C# 脚本时。 在这种情况下,可以仅根据名称而不是类型访问该组件。
using UnityEngine;
public class GetComponentNonPerformantExample : MonoBehaviour { void Start() { HingeJoint hinge = gameObject.GetComponent("HingeJoint") as HingeJoint;
if (hinge != null) hinge.useSpring = false; } }
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