《Unity HingeJoint的简单运用，门》 有两行代码现在已经用不了改了一下 有兴趣的朋友可以看一下啊 原作者原谅我啊

using System;
using UnityEngine;
using System.Collections;

public class Test : MonoBehaviour
{

    private float OpenSpeed = 30;
    private string option = "";
    private bool isOpen = false;
    static JointMotor motor;
    // Use this for initialization 
    void Start()
    {

    }

    // Update is called once per frame 
    void Update()
    {
        if (!isOpen)
        {
            option = "打开";
        }
        else
        {
            option = "关闭";
        }

    }

    private void OnGUI()
    {
        if (GUI.Button(new Rect(10, 10, 200, 30), option))
        {
            motor = new JointMotor();
            motor.targetVelocity = OpenSpeed;
            motor.force = 3;
            GetComponent<HingeJoint>().motor = motor;  
            OpenSpeed = -OpenSpeed;
            isOpen = true;
        }
    }
}