[Serializable, ComVisible(true), __DynamicallyInvokable]public abstract class Encoding : ICloneable{ // Fields private static volatile Encoding asciiEncoding; private static volatile Encoding bigEndianUnicode; private const int ChineseHZ = 0xcec8; internal const int CodePageASCII = 0x4e9f; private const int CodePageBigEndian = 0x4b1; private const int CodePageDefault = 0; private const int CodePageDLLKorean = 0x51d5; private const int CodePageGB2312 = 0x51c8; private const int CodePageMacGB2312 = 0x2718; private const int CodePageMacKorean = 0x2713; private const int CodePageNoMac = 2; private const int CodePageNoOEM = 1; private const int CodePageNoSymbol = 0x2a; private const int CodePageNoThread = 3; private const int CodePageUnicode = 0x4b0; private const int CodePageUTF32 = 0x2ee0; private const