GameObject obj = this.gameObject;

string name = obj.name;
Debug.Log("物体名字：" + name)

Transform tr = transform;

Transform tr = transform;
Vector3 pos = tr.position;
Debug.Log("世界坐标：" + pos.ToString("F3"));

Vector3 localPos = tr.localPosition;
Debug.Log("本地坐标：" + localPos.ToString("F3"));

transform.localPosition = new Vector3(1.5f, 0, 2.0f);

Debug.Log("帧更新：" + Time.time);
Debug.Log("帧更新时间差：" + Time.deltaTime);
//帧数计算
Debug.Log("帧数：" + (1 / Time.deltaTime));

Application.targetFrameRate = 60;

Vector3 pos = transform.localPosition;
pos.X += 0.01f;
transform.localPosition = pos;

float speed = 3;
float distance = speed * Time.deltaTime;

Vector3 pos = transform.localPosition
pos.z += distance;
transform.localPosition = pos;

transform.Translate(dx,dy,dz,.)

transform.Translate(O, O, distance); //Z方向增加distance

transform.Translate(dx, dy, dz, space);

p1 = 火车.transform.position
p2 = 红旗.transform.position
p = p1 - p2
distance = p.magnitude

Vector3 angles = transform.localEulerAngles;
angles.y += 0.5f;
transform.localEulerAngles = angles;

float rotateSpeed = 30; //每秒转30度角

angles.y += rotateSpeed * Time.deltaTime; //0.5f;

transform.Rotate(dx, dy, dz, space);

Vector3 angles = transform.localEulerAngles;
angles += new Vector3(dx, dy, dz);
transform.localEulerAngles = angles;

// 找到父物体
Transform parent = transform.parent;

// 控制父物体旋转
parent.Rotate(0, rotateSpeed * Time.deltaTime, 0, Space.Self);

Application.targetFrameRate = 60;

public float rotateSpeed=30f;

[ Tooltip("这个是Y轴向的角速度") ]
public float rotateSpeed = 30f;

RotateY script = new RotateY()
script.rotateSpeed = 180f
script.Awake()
script.Start()

Input.GetMouseButtonDown()
Input.GetMouseButtonUp()
Input.GetMouseButton()

if(Input.GetMouseButtonDown(0))
{
	Vector3 mousePos = Input.mousePosition;
	Debug.Log("鼠标点击位置:" + mousePos);
}

// 一个物体，在屏幕上的位置 ：
worldPos = transform.position;
// screenPos 屏幕坐标
screenPos = Camera.main.WorldToScreenPoint(worldPos);

// 其中所谓 屏幕，相对于摄像机而言的，实际上是指摄像头的屏

void Update()
{
    if(Input.GetMouseButtonDown(0))
    {
        PlayMusic();
    }
}

void PlayMusic()
{
    // 获取组件
    AudioSource audio = GetComponent<AudioSource>();

    if( audio.isPlaying )
    {
        Debug.Log("* 停止播放");
        audio.Stop();
    }
    else
    {
        Debug.Log("* 开始播放音乐 ..");
        audio.Play();
    }
}

audio.mute = true; //设置静音

public GameObject bgmNode;

AudioSource audio = bgmNode.getComponent<AudioSource>();

public AudioSource bgm;

// 目标组件，直接在检查里引用
public FanLogic fan;

void Update()
{
    if(Input.GetMouseButtonDown(0))
    {
        DoWork();
    }
}

void DoWork()
{
    //FanLogic fan = fanNode.GetComponent<FanLogic>();
    fan.rotateSpeed = 180;
}

//找到目标节点
public GameObject target;
//向目标节点发送‘消息’
target.SendMessage(methodName, value)

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MainLogic : MonoBehaviour
{
    public RotateLogic rotateLogic;
    public FlyLogic flyLogic;

    // Start is called before the first frame update
    void Start()
    {
        Application.targetFrameRate = 60;
        rotateLogic.DoRotate();
    }

    // Update is called once per frame
    void Update()
    {
        // w 键，起飞， s 键 ，降落
        if(Input.GetKeyDown(KeyCode.W))
        {
            flyLogic.Fly();
        }
        if (Input.GetKeyDown(KeyCode.S))
        {
            flyLogic.Land();
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class RotateLogic : MonoBehaviour
{
    float m_rotateSpeed;

    // Start is called before the first frame update
    void Start()
    {
    }

    // Update is called once per frame
    void Update()
    {
        transform.Rotate(0, m_rotateSpeed * Time.deltaTime, 0, Space.Self);
    }

    public void DoRotate()
    {
        m_rotateSpeed = 360*3;
    }
    public void DoStop()
    {
        m_rotateSpeed = 0;
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FlyLogic : MonoBehaviour
{
    float m_speed = 0;

    // Start is called before the first frame update
    void Start()
    {
    }

    // Update is called once per frame
    void Update()
    {
        float height = transform.position.y;
        float dy = m_speed * Time.deltaTime;

        if( dy > 0 && height < 4 )
        {
            transform.Translate(0, dy, 0, Space.Self);
        }
        if ( dy < 0 && height > 0)
        {
            transform.Translate(0, dy, 0, Space.Self);
        }
    }

    public void Fly()
    {
        m_speed = 1;
    }

    public void Land()
    {
        m_speed = -1;
    }
}

public GameObject wingNode;

void Start()
{
    RotateLogic rotateLogic = wingNode.GetComponent<RotateLogic>();
    rotateLogic.DoRotate();
}

//父级的Transform组件
Transform parent = transform.parent;
//父级的GameObject节点
GameObject parentNode = transform.parent.gameObject;

foreach (Transform child in transform)
{
    Debug.Log("* 子物体: " + child.name); //child
}

Transform child = transform.GetChild(0); //第0个
Debug.Log("* 子物体: " + child.name); //child

Transform child = transform.Find("bb/cc");
if(child != null)
{
    Debug.Log("* 找到子物体: " + child.name); //child
}
else
{
    Debug.Log("Not Found"); //child
}

transform.SetParent(other);

transform.SetParent(null);

Transform child = transform.Find("aa");
if(child.gameObject.activeSelf)
{
    child.gameObject.SetActive(false);
}
else
{
    child.gameObject.SetActive(true);
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerLogic : MonoBehaviour
{
    int m_index = 0; // 表示显示的是哪一个形状

    // Start is called before the first frame update
    void Start()
    {
    }

    // Update is called once per frame
    void Update()
    {
        if(Input.GetKeyDown(KeyCode.Space))
        {
            ChangeShape();
        }

        // 向前运动
        float speed = 1;
        transform.Translate(0, 0, speed * Time.deltaTime, Space.Self);
    }

    private void ChangeShape()
    {
        // 先把原来的形状，隐藏
        Transform child = transform.GetChild(m_index);
        child.gameObject.SetActive(false);

        m_index += 1;
        int count = transform.childCount;
        if (m_index >= count)
            m_index = 0;

        // 显示新的形状
        child = transform.GetChild(m_index);
        child.gameObject.SetActive(true);
    }
}

public AudioClip[] songs;

int index = Random.Range(min, max);

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SimpleLogic : MonoBehaviour
{
    public Material[] colors;

    int m_index = 0;

    // Start is called before the first frame update
    void Start()
    {
    }

    // Update is called once per frame
    void Update()
    {
        if(Input.GetMouseButtonDown(0))
        {
            ChangeColor();
        }
    }

    private void ChangeColor()
    {
        m_index += 1;
        if (m_index >= colors.Length)
            m_index = 0;

        Material selected = colors[m_index];

        MeshRenderer rd = GetComponent<MeshRenderer>();
        rd.material = selected;
    }
}

using System.Threading;
int threadld = Thread.CurrentThread.ManagedThreadld

if (!IsInvoking(func))
{
	InvokeRepeating(func, delay, interval);
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class LightLogic : MonoBehaviour
{
    [Tooltip("红、绿、黄按顺序指定")]
    public Material[] colors;

    int m_index = 0; // 红灯开始

    // Start is called before the first frame update
    void Start()
    {
        ChangeColor();
    }

    // Update is called once per frame
    void Update()
    {
    }

    void ChangeColor()
    {
        // 当前材质
        Material color = colors[m_index];
        MeshRenderer renderer = GetComponent<MeshRenderer>();
        renderer.material = color;
        Debug.Log("* Change -> " + m_index + ", time=" + Time.time);

        if (m_index == 0)
        {
            // 红 -> 绿，间隔3秒钟
            Invoke("ChangeColor", 4);
        }
        else if (m_index == 1)
        {
            // 绿 -> 黄，间隔1秒钟
            Invoke("ChangeColor", 4);
        }
        else if (m_index == 2)
        {
            // 黄 -> 红，间隔1秒钟
            Invoke("ChangeColor", 1);
        }

        // 切换
        m_index++;
        if (m_index >= 3) m_index = 0;
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FanLogic : MonoBehaviour
{
    // 最大转速
    public float maxRotateSpeed = 720;

    float m_speed = 0; // 当前转速
    bool m_speedUp = false; // true 加速 , false 减速

    // Start is called before the first frame update
    void Start()
    {
        InvokeRepeating("AdjustSpeed", 0.1f, 0.1f);
    }

    // Update is called once per frame
    void Update()
    {
        // 点一下，加速。再点一下，减速。
        if(Input.GetMouseButtonDown(0))
        {
            m_speedUp = !m_speedUp;
        }

        // 旋转
        if(m_speed > 0)
        {
            transform.Rotate(0, m_speed * Time.deltaTime, 0, Space.Self);
        }
    }

    // 速度调整
    private void AdjustSpeed()
    {
        if(m_speedUp)
        {
            if (m_speed < maxRotateSpeed)
                m_speed += 10;
        }
        else
        {
            m_speed -= 10;
            if (m_speed < 0)
                m_speed = 0;
        }
    }

}

Vector3 v = new Vector3(3, 0, 4);
float len = v.magnitude;

Vector3 v1 = new Vector3(1, 0, 0);
Vector3 v2 = new Vector3(0.6f, 0.8f, 0);

Vector3 v1 = new Vector3(2, 2, 0);
Vector3 v2 = v1.normalized;

Vector3 a = new Vector3(1, 3, 0);
Vector3 b = new Vector3(4, 1, 3);
Vector3 c = a + b;

Vector3 m = new Vector3 (5, 4, 0);
Vector3 n = new Vector3(1, 3, 0);
Vector3 p = m - n;

Vector3 a = new Vector(1, 1, 0);
Vector3 b = a;

Vector3 speed = null; ??

Vector3 p1 = transform.position; /自己位置
Vector3 p2 = target.transform.position; /目标位置
Vector3 direction = p2 - p1; /方向向量
float distance = direction.magnitude; /距离

Vector3.Distance(a, b) //也可以求距离

public Vector3 speed;

void Update()
{
	transform.Translate(speed * Time.deltaTime, Space.Self);
}

Object.Instantiate(original, parent)

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MainLogic : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        Application.targetFrameRate = 60;
    }

    // Update is called once per frame
    void Update()
    {
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FireLogic : MonoBehaviour
{
    // 对子弹 prefab 资源的引用
    public GameObject bulletPrefab;

    [Tooltip("子弹节点的管理")]
    public Transform bulletFolder;

    [Tooltip("子弹出生点")]
    public Transform firePoint;

    [Tooltip("炮塔")]
    public Transform cannon;

    [Tooltip("子弹飞行速度")]
    public float bulletSpeed;

    [Tooltip("子弹飞行时长")]
    public float bulletLifetime;

    // Start is called before the first frame update
    void Start()
    {
    }

    // Update is called once per frame
    void Update()
    {
        if(Input.GetMouseButtonDown(0))
        {
            TestFire();
        }
    }

    private void TestFire()
    {
        Debug.Log("* 创建子弹的实例 ..");
        GameObject node = Object.Instantiate(bulletPrefab, bulletFolder); // 指定父节点
        node.transform.position = this.firePoint.position;  // 指定出生点
        node.transform.eulerAngles = this.cannon.eulerAngles; // 与炮塔角度一致

        // node.transform.rotation = this.cannon.rotation; // 这样写也可以，指定初始角度

        // 指定初始飞行速度
        BulletLogic script = node.GetComponent<BulletLogic>();
        script.speed = this.bulletSpeed; // 0.5f;
        script.maxDistance = script.speed * this.bulletLifetime; // 最大最行距离
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class BulletLogic : MonoBehaviour
{
    public float speed;

    public float maxDistance;

    // Start is called before the first frame update
    void Start()
    {
        float lifetime = 1;
        if(speed > 0)
        {
            lifetime = maxDistance / speed;
        }

        // 在 lifetime之后，调用 SelfDestroy 自毁
        Invoke("SelfDestroy", lifetime);
    }

    // Update is called once per frame
    void Update()
    {
        this.transform.Translate(0, 0, speed, Space.Self);
    }

    private void SelfDestroy()
    {
        Debug.Log("* 自毁 !");
        // 销毁实例
        Object.Destroy(this.gameObject);
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FireLogic : MonoBehaviour
{
    // 对子弹 prefab 资源的引用
    public GameObject bulletPrefab;

    //
    [Tooltip("子弹节点的管理")]
    public Transform bulletFolder;

    [Tooltip("子弹出生点")]
    public Transform firePoint;

    [Tooltip("炮塔")]
    public Transform cannon;

    [Tooltip("子弹飞行速度")]
    public float bulletSpeed;

    [Tooltip("子弹飞行时长")]
    public float bulletLifetime;

    [Tooltip("子弹发射间隔")]
    public float bulletInterval;

    [Tooltip("炮塔转速")]
    public float rotateSpeed;

    // 当前转角
    private Vector3 m_eulerAngles;

    // Start is called before the first frame update
    void Start()
    {
        StartFire();
    }

    // Update is called once per frame
    void Update()
    {
        //if(Input.GetMouseButtonDown(0))
        //{
        //    TestFire();
        //}

        float delta = rotateSpeed * Time.deltaTime;

        if (Input.GetKey(KeyCode.A))
        {
            // 左转
            if (m_eulerAngles.y > -75)
                m_eulerAngles.y -= delta;
        }
        if (Input.GetKey(KeyCode.D))
        {
            // 右转
            if (m_eulerAngles.y < 75)
                m_eulerAngles.y += delta;
        }
        if (Input.GetKey(KeyCode.W))
        {
            // 上转
            if (m_eulerAngles.x > -60)
                m_eulerAngles.x -= delta;
        }
        if (Input.GetKey(KeyCode.S))
        {
            // 下转
            if (m_eulerAngles.x < 10)
                m_eulerAngles.x += delta;
        }

        // 多维度旋转时，不宜使用 Rotate
        cannon.transform.localEulerAngles = m_eulerAngles;
    }

    private void TestFire()
    {
        //Debug.Log("* 创建子弹的实例 ..");
        GameObject node = Instantiate(bulletPrefab, bulletFolder); // 指定父节点
        node.transform.position = firePoint.position;  // 指定出生点
        node.transform.eulerAngles = cannon.eulerAngles; // 与炮塔角度一致

        // node.transform.rotation = this.cannon.rotation; // 这样写也可以，指定初始角度

        // 指定初始飞行速度
        BulletLogic script = node.GetComponent<BulletLogic>();
        script.speed = bulletSpeed; // 0.5f;
        script.maxDistance = script.speed * bulletLifetime; // 最大最行距离
    }

    // 开火
    public void StartFire()
    {
        if (! IsInvoking("TestFire") )
        {
            InvokeRepeating("TestFire", bulletInterval, bulletInterval);
        }
    }

    public void StopFire()
    {
        CancelInvoke("TestFire");
    }
}

void OnTriggerEnter(Collider other)
{
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class BulletLogic : MonoBehaviour
{
    public Vector3 speed;

    // Start is called before the first frame update
    void Start()
    {
    }

    // Update is called once per frame
    void Update()
    {
        transform.Translate(speed * Time.deltaTime, Space.Self);
    }

    private void OnTriggerEnter(Collider other)
    {
        if( other.name.Equals("目标"))
        {
            Debug.Log("* 子弹发生碰撞，other=" + other.name);
            Destroy(other.gameObject);
            Destroy(gameObject);
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MainLogic : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        Application.targetFrameRate = 60;

    }

    // Update is called once per frame
    void Update()
    {

    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class BulletLogic : MonoBehaviour
{
    [Tooltip("子弹飞行速度")]
    public float speed = 1;

    [Tooltip("子弹生命时长")]
    public float lifetime = 3;

    [Tooltip("爆炸的粒子特效的prefab")]
    public GameObject explosionEffect;

    // Start is called before the first frame update
    void Start()
    {
        Invoke("SelfDestroy", lifetime);
    }

    // Update is called once per frame
    void Update()
    {
        transform.Translate(0, 0, speed * Time.deltaTime, Space.Self);
    }

    private void OnTriggerEnter(Collider other)
    {
        Debug.Log("* 子弹碰撞, other=" + other.name);

        if (!other.name.StartsWith("怪兽")) return;

        // 销毁子弹
        Destroy(this.gameObject);

        // 销毁对方节点
        Destroy(other.gameObject);

        // 创建一个粒子特效，表现爆炸效果
        GameObject effectNode = Instantiate(explosionEffect, null);
        effectNode.transform.position = this.transform.position;
        // 当粒子特效播放时，该节点会自毁
    }

    private void SelfDestroy()
    {
        Destroy(this.gameObject);
    }

}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerLogic : MonoBehaviour
{
    [Tooltip("子弹节点的预制体")]
    public GameObject bulletPrefab;

    [Tooltip("子弹节点的父节点")]
    public Transform bulletFolder;

    [Tooltip("子弹出生点")]
    public Transform firePoint;

    [Tooltip("开火间隔")]
    public float fireInterval = 0.1f;

    [Tooltip("平移速度")]
    public float moveSpeed = 0.1f;

    // Start is called before the first frame update
    void Start()
    {
        InvokeRepeating("Fire", fireInterval, fireInterval);
    }

    // Update is called once per frame
    void Update()
    {
        float dx = 0;

        if (Input.GetKey(KeyCode.A))
        {
            dx = -moveSpeed;
        }
        if (Input.GetKey(KeyCode.D))
        {
            dx = moveSpeed;
        }
        this.transform.Translate(dx, 0, 0, Space.Self);
    }

    private void Fire()
    {
        // 实例化一个子弹节点
        GameObject node = Instantiate(bulletPrefab, bulletFolder);

        // 把子弹移动到出生点位置
        node.transform.position = firePoint.position;
    }

}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EnemyLogic : MonoBehaviour
{
    [Tooltip("前进速度")]
    public float zSpeed = 10;

    // 横移速度
    float xSpeed = 0;

    // Start is called before the first frame update
    void Start()
    {
        // 每秒改变一次横移速度
        InvokeRepeating("SnakeMove", 1f, 1f);
    }

    // Update is called once per frame
    void Update()
    {
        float dz = zSpeed * Time.deltaTime;
        float dx = xSpeed * Time.deltaTime;

        this.transform.Translate(dx, 0, dz, Space.Self);
    }

    // 蛇皮走位
    void SnakeMove()
    {
        // 4 种速度选项
        float[] options = { -10, -5, 5, 10 };

        int sel = Random.Range(0, options.Length);

        xSpeed = options[sel];
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EnemyCreator : MonoBehaviour
{
    [Tooltip("怪兽的 Prefab")]
    public GameObject enemyPrefab;

    [Tooltip("定时创建新的怪兽")]
    public float interval = 1;

    // Start is called before the first frame update
    void Start()
    {
        // CreateEnemy();
        InvokeRepeating("CreateEnemy", 0.1f, interval);
    }

    // Update is called once per frame
    void Update()
    {

    }

    private void CreateEnemy()
    {
        GameObject node = Instantiate(enemyPrefab, this.transform);
        node.transform.position = this.transform.position;

        // 头转过来
        node.transform.localEulerAngles = new Vector3(0, 180, 0);

        // 添加一个随机的偏移量，避免被人堵住出生点
        float dx = Random.Range(-20, 20);
        node.transform.Translate(dx, 0, 0, Space.Self);

    }
}