GameObject.GetComponents 获取组件列表

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public HingeJoint[] hingeJoints;
	public void Awake() {
		hingeJoints = gameObject.GetComponents<HingeJoint>();
		foreach (HingeJoint joint in hingeJoints) {
			joint.useSpring = false;
		}
	}
}

// Disable the spring on all HingeJoints 
// in this game object
// 使这个游戏物体上的所有HingeJoints上的spring不可用.

var hingeJoints : HingeJoint[];
hingeJoints = gameObject.GetComponents (HingeJoint);
for (var joint : HingeJoint in hingeJoints) {
	joint.useSpring = false;
}