巧妙地批量修改unity本地文件的参数

项目中有几百个音频文件，需要设置音频文件的格式，但Unity这块还不支持批量选中操作，一个一个修改太费劲

参考了http://www.manew.com/thread-46098-1-1.html

using UnityEngine;
using UnityEditor;

public class ChangeAudioClip
{
[MenuItem ("Crusade Tools/AudioClip")]

public static void CreatTool()
{
EditorWindow.GetWindow<AudioClip_Tool>(false ,"AudioClip_Tool",true).Show ();
}
}

public class AudioClip_Tool:EditorWindow
{
void OnGUI()
{
GUILayout.Space(20);
GUILayout.BeginHorizontal();

if(GUILayout.Button("Force To Mono - False", GUILayout.Width(150)))
{
SelectedChangeAudioFomat(false);
}
if(GUILayout.Button("Force To Mono - True", GUILayout.Width(150)))
{
SelectedChangeAudioFomat(true);
}
GUILayout.EndHorizontal();
GUILayout.Space(20);
GUILayout.BeginHorizontal();
if(GUILayout.Button("LoadType - DecompressOnLoad", GUILayout.Width(150)))
{
SelectedChangeAudioTyle(AudioClipLoadType.DecompressOnLoad);
}
if(GUILayout.Button("LoadType - CompressedInMemory", GUILayout.Width(150)))
{
SelectedChangeAudioTyle(AudioClipLoadType.CompressedInMemory);
}
if(GUILayout.Button("LoadType - Streaming", GUILayout.Width(150)))
{
SelectedChangeAudioTyle(AudioClipLoadType.Streaming);
}
GUILayout.EndHorizontal();
}
void OnInspectorUpdate()
{
this.Repaint();
}
static void SelectedChangeAudioTyle(AudioClipLoadType ac)
{
Object[] audios = GetSelectedAudioClip();
Selection.objects = new Object[0];
foreach (AudioClip audioClips in audios)  {
string path = AssetDatabase.GetAssetPath(audioClips);
AudioImporter audioImporter = AudioImporter.GetAtPath(path) as AudioImporter;
AudioImporterSampleSettings ais=audioImporter.defaultSampleSettings;
ais.loadType=ac;
audioImporter.defaultSampleSettings=ais;
AssetDatabase.ImportAsset(path);
}
}
static void SelectedChangeAudioFomat(bool  newFormat)
{
Object[] audios = GetSelectedAudioClip();
Selection.objects = new Object[0];
foreach (AudioClip audioClips in audios)  {
string path = AssetDatabase.GetAssetPath(audioClips);
AudioImporter audioImporter = AudioImporter.GetAtPath(path) as AudioImporter;
audioImporter.forceToMono = newFormat;
AssetDatabase.ImportAsset(path);
}
}
static Object[] GetSelectedAudioClip()
{
return Selection.GetFiltered(typeof(AudioClip), SelectionMode.DeepAssets);
}
}

这在5.4中是没问题的，但是在4.6就会报错，而且二个版本的界面都不一样。这样就只能寻找其他的解决方法：

又找到了这个http://jingyan.baidu.com/article/48a42057c190d4a924250484.html

因为我发现这些信息是记录在.meta文件里的，只要修改meta文件就可以达到我想要的效果。于是就变成了批量修改多个文本中的字符串=。=