C# 将对象序列化为Json格式

public static string JsonSerializer<T>(T t)
{
    DataContractJsonSerializer ser = new  DataContractJsonSerializer(typeof(T));
    MemoryStream ms = new MemoryStream();
    ser.WriteObject(ms, t);
    string jsonString = Encoding.UTF8.GetString(ms.ToArray());
    ms.Close();
    return jsonString;
}