Unity3D學習筆記——遞歸+非遞歸遍歷GameObject的子物體

　　在Unity3D中沒有提供直接的方法獲取某個GameObject的子GameObject，可是全部的GameObject都有transform對象，因此，通常是經過獲取子GameObject的transform來達到遍歷子GameObject的目的。官網手冊中「Transform」頁面給出了以下示例代碼：

 1 using UnityEngine;
 2 using System.Collections;
 3 
 4 public class example : MonoBehaviour {
 5     void Example() {
 6         foreach (Transform child in transform) {
 7             child.position += Vector3.up * 10.0F;
 8         }
 9     }
10 }

　　可是，這段代碼只能遍歷該GameObject的直接子GameObject，而要遍歷該GameObject的全部子GameObject，則須要進行遞歸：

 1 using UnityEngine;
 2 using System.Collections;
 3 
 4 public class example: MonoBehaviour {
 5     void Example() {
 6         Recursive(gameObject);
 7     }
 8     
 9     private void Recursive(GameObject parentGameObject){
10         //Do something you want
11         //......
12         foreach (Transform child in parentGameObject.transform){
13             Recursive(child.gameObject);
14         }
15     }                                                        
16 }