Unity中SendMessage和Delegate效率比较-白红宇

Unity中SendMessage和Delegate效率比较

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发布时间：2019-06-19

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网上直接搜的代码。需要的使用也简单，所以就不过多说明。

但是网上都说，他们之间的差距，delegate比较快，效果高。怎么个高法呢?还是自己来下时间。

故此，

个人之用来比较下时间差别。

一、直接代码

using UnityEngine;using System.Collections;///  /// Delegate basic. /// just test Delegate && SendMessage .. /// /// By Chiuan 2012.8 /// 
 public class DelegateBasic : MonoBehaviour { static int loopNumber = 5000000; //define my delegate statement. public delegate void MyDelegate(string arg1); //create my delegate object public MyDelegate myDelegate; //need some values to debug time spent. bool isStart; float timeStart; int count; bool isStartSendMessage; // Use this for initialization void Start() { myDelegate += myFunciton1; //myDelegate += myFunciton2; } // Update is called once per frame void Update() { if (isStart) { isStart = false; count = 0; timeStart = Time.realtimeSinceStartup; Debug.Log("Start = " + timeStart); for (int i = 0; i < loopNumber; i++) { if (myDelegate != null) myDelegate(""); } } if (isStartSendMessage) { isStartSendMessage = false; count = 0; timeStart = Time.realtimeSinceStartup; Debug.Log("Start = " + timeStart); for (int i = 0; i < loopNumber; i++) { this.gameObject.SendMessage("myFunciton1", "", SendMessageOptions.DontRequireReceiver); } } } void OnGUI() { if (GUILayout.Button("INVOKE Delegate")) { isStart = true; } if (GUILayout.Button("SendMessage")) { isStartSendMessage = true; } } void myFunciton1(string s) { count++; if (count == loopNumber) { Debug.Log("End = " + Time.realtimeSinceStartup); Debug.Log("Time Spent = " + (Time.realtimeSinceStartup - timeStart)); } } }