public static void UpdateStreaming()
{
//确保svn最新
FileUtilTool.DeleteFolder(Application.streamingAssetsPath);
FileUtilTool.CreateFolder(Application.streamingAssetsPath);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
CallShellCommand();
AssetDatabase.SaveAssets();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
}