EditorUtility.SaveFilePanelInProject 在项目中保存文件夹面板

// Opens a file selection dialog for a PNG file and saves a selected texture to the file.
//打开一个文件选择对话框用于PNG文件并保持一个选择的纹理到文件
import System.IO;

@MenuItem("Examples/Save Texture to file")
static function Apply () {
	var texture : Texture2D = Selection.activeObject as Texture2D;

	if(!texture) {
		EditorUtility.DisplayDialog("Select Texture",
		"You Must Select a Texture first!",
		"Ok");
		return;
	}

	var path = EditorUtility.SaveFilePanelInProject("Save texture as PNG",
		texture.name + ".png",
		"png",
		"Please enter a file name to save the texture to");
	if(path.Length != 0) {
		// Convert the texture to a format compatible with EncodeToPNG
		//转换纹理到EncodeToPNG兼容格式
		if(texture.format != TextureFormat.ARGB32 && texture.format != TextureFormat.RGB24) {
			var newTexture = Texture2D(texture.width, texture.height);
			newTexture.SetPixels(texture.GetPixels(0),0);
			texture = newTexture;
		}
		var pngData = texture.EncodeToPNG();
		if(pngData != null) {
			File.WriteAllBytes(path, pngData);
			// As we are saving to the asset folder, tell Unity to scan for modified or new assets
			//保存到资源文件夹，告诉Unity来扫描修改的或新的资源
			AssetDatabase.Refresh();
		}
	}
}