Unity运行时保存prefab的方法一则

using UnityEngine;
using UnityEditor;
using System.Collections;

static public class PrefabExtendTools
{

[MenuItem("CONTEXT/Transform/SavePrefab")]
static public void SavePrefab()
{
GameObject source = PrefabUtility.GetPrefabParent (Selection.activeGameObject) as GameObject;
if(source == null) return;
string prefabPath = AssetDatabase.GetAssetPath (source).ToLower ();
if(prefabPath.EndsWith(".prefab") == false) return;
PrefabUtility.ReplacePrefab (Selection.activeGameObject, source, ReplacePrefabOptions.ConnectToPrefab | ReplacePrefabOptions.ReplaceNameBased);
}
}