void XmlSerilize(TestSerialize testSerialize)
    {
        FileStream fileStream = new FileStream(Application.streamingAssetsPath + "/test.xml", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);

        StreamWriter  streamWriter = new StreamWriter(fileStream, System.Text.Encoding.UTF8);
        XmlSerializer xml          = new XmlSerializer(testSerialize.GetType());

        xml.Serialize(streamWriter, testSerialize);
        streamWriter.Close();
        fileStream.Close();
    }
    void XmlSerialize(TestSerialize _testSerialize)
    {
        // 1.打开文件流 2.创建写入流 3.创建xml序列化类
        FileStream    fileStream = new FileStream(Application.dataPath + "/test.xml", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
        StreamWriter  sw         = new StreamWriter(fileStream, Encoding.UTF8);
        XmlSerializer xml        = new XmlSerializer(_testSerialize.GetType());

        // 把_testSerilize序列化到写入流中
        xml.Serialize(sw, _testSerialize);
        sw.Close();
        fileStream.Close();
    }