#副標=.NET Framework與Unicode
#大標=C#與Unicode的應用
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protected Encoding(int codepage);
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public static Encoding GetEncoding(
   int codepage  //代表Code Page的整數值
);
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public static Encoding GetEncoding(
   string name   //Code Page的名稱
);
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public virtual int GetByteCount(
   string s	//原始字串
);
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public virtual int GetByteCount(
   char[] chars		//原始字元陣列，一般而言是由原始字串得來
);
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public abstract int GetByteCount(
   char[] chars,	//原始字元陣列
   int index,	//字元陣列要編碼的起始位置
   int count	//字元陣列要編碼的個數
);
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public virtual byte[] GetBytes(
   string s	//原始字串
);
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public virtual byte[] GetBytes(
   char[] chars		//原始字元陣列，一般而言是由原始字串得來
);
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public virtual byte[] GetBytes(
   char[] chars,	//原始字元陣列
   int index,	//字元陣列要編碼的起始位置
   int count	//字元陣列要編碼的個數
);
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public virtual int GetCharCount(
   byte[] bytes		//要進行解碼的位元陣列
);
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public abstract int GetCharCount(
   byte[] bytes,	//要進行解碼的位元陣列
   int index,	//位元陣列開始進行解碼的起始位置
   int count	//要進行解碼的位元成員總數
);
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public virtual char[] GetChars(
   byte[] bytes		//要進行解碼的位元陣列
);
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public virtual char[] GetChars(
   byte[] bytes,	//要進行解碼的位元陣列
   int index,	//要進行解碼的位元陣列起始位置
   int count	//位元陣列要進行解碼的位元總數
);
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public abstract int GetChars(
   byte[] bytes,	//要進行解碼的位元陣列
   int byteIndex,	//要進行解碼的位元陣列起始位置
   int byteCount,	//位元陣列要進行解碼的位元總數
   char[] chars,	//解碼後所產生的目的字元陣列
   int charIndex	//目的字元陣列加入解碼字元的起始位置
);
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public static byte[] Convert(
   Encoding srcEncoding,	//來源編碼格式，以Encoding類別物件實體表示
   Encoding dstEncoding,	//目的編碼格式，以Encoding類別物件實體表示
   byte[] bytes		//來源編碼格式的位元陣列值
);
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public static byte[] Convert(
   Encoding srcEncoding,	//來源編碼格式，以Encoding類別物件實體表示
   Encoding dstEncoding,	//目的編碼格式，以Encoding類別物件實體表示
   byte[] bytes,	//來源編碼格式的位元陣列值
   int index,	//來源編碼格式的位元陣列裡要進行解碼的起始位置
   int count	//來源編碼格式的位元陣列裡要進行解碼的位元個數
);
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1.using System.Text;

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1.private void ToCodePageDecode(int codepage)
2.{
3.	Encoding targetEncoding;
4.	int byte_counter = 0;
5.	byte []bytes;
6.	char []chars;
7.	char []target_chars;
8.	string s_Decode = "";
9.
10.	targetEncoding = Encoding.GetEncoding(codepage);
11.	chars = this.textBox1.Text.ToCharArray();
12.	target_chars = new char[chars.Length];
13.	byte_counter = targetEncoding.GetByteCount(chars, 0,chars.Length);
14.	bytes = new byte[byte_counter];
15.	bytes = targetEncoding.GetBytes(this.textBox1.Text);
16.	this.textBox2.Text += "\r\nCode Page " +
17.		targetEncoding.CodePage + " " +
18.		targetEncoding.EncodingName + "\r\n";
19.	for (int idx = 0; idx < bytes.Length; idx++)
20.	{
21.		this.textBox2.Text += " " + bytes[idx].ToString();
22.	}
23.	this.textBox2.Text += "\r\n";
24.	targetEncoding.GetChars(bytes, 0, bytes.Length, target_chars, 0);
25.	s_Decode = new String(target_chars);
26.	this.textBox2.Text += "Decode -> " + s_Decode;
27.}
　　　
　　　
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1.private void button1_Click(object sender, System.EventArgs e)
2.{
3.	this.textBox2.Text = "";
4.	this.ToCodePageDecode(437);
5.	this.ToCodePageDecode(850);
6.	this.ToCodePageDecode(852);
7.	this.ToCodePageDecode(932);
8.	this.ToCodePageDecode(949);
9.	this.ToCodePageDecode(950);
10.	this.ToCodePageDecode(1252);
11.}
　　　
　　　
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1.private void ToCodePageDecode(int codepage)
2.{
3.	Encoding targetEncoding;
4.	Encoder targetEncoder;
5.	Decoder targetDecoder;
6.	int byte_counter = 0;
7.	byte []bytes;
8.	char []chars;
9.	string s_Decode = "";
10.
11.
12.	targetEncoding = Encoding.GetEncoding(codepage);
13.	targetEncoder = targetEncoding.GetEncoder();
14.	targetDecoder = targetEncoding.GetDecoder();
15.	chars = this.textBox1.Text.ToCharArray();
16.	byte_counter = targetEncoder.GetByteCount(chars, 0, chars.Length, true);
17.	bytes = new byte[byte_counter];
18.	targetEncoder.GetBytes(chars, 0, chars.Length, bytes, 0, true);
19.	this.textBox2.Text += "\r\nCode Page " +
20.		targetEncoding.CodePage + " " +
21.		targetEncoding.EncodingName + "\r\n";
22.	for (int idx = 0; idx < bytes.Length; idx++)
23.	{
24.		this.textBox2.Text += " " + bytes[idx].ToString();
25.	}
26.	this.textBox2.Text += "\r\n";
27.	targetDecoder.GetChars(bytes, 0,bytes.Length, chars, 0);
28.	s_Decode = new String(chars);
29.	this.textBox2.Text += "Decode -> " + s_Decode;
30.}
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1.private void ToCodaPage(int source_page, int target_page)
2.{
3.	Encoding sourceEncoding, targetEncoding;
4.	char []chars = this.textBox1.Text.ToCharArray();
5.	byte []bytes;
6.	byte []target_bytes;
7.	int byte_counter = 0;
8.	string s_Decode = "";
9.
10.	sourceEncoding = Encoding.GetEncoding(source_page);
11.	targetEncoding = Encoding.GetEncoding(target_page);
12.	byte_counter = sourceEncoding.GetByteCount(chars, 0,chars.Length);
13.	bytes = new byte[byte_counter];
14.	bytes = sourceEncoding.GetBytes(this.textBox1.Text);
15.	byte_counter = targetEncoding.GetByteCount(chars, 0,chars.Length);
16.	target_bytes = new byte[byte_counter];
17.	target_bytes = Encoding.Convert(sourceEncoding, targetEncoding, bytes);
18.	s_Decode = targetEncoding.GetString(target_bytes);
19.	this.textBox2.Text += "\r\nSource Code Page " +
20.		sourceEncoding.CodePage + " " +
21.		sourceEncoding.EncodingName + "\r\n";
22.	this.textBox2.Text += "\r\nTarget Code Page " +
23.		targetEncoding.CodePage + " " +
24.		targetEncoding.EncodingName + "\r\n";
25.	this.textBox2.Text += "\r\nSource Byte -> ";
26.	for (int idx = 0; idx < bytes.Length; idx++)
27.	{
28.		this.textBox2.Text += " " + bytes[idx].ToString();
29.	}
30.	this.textBox2.Text += "\r\n";
31.	this.textBox2.Text += "\r\nTarget Byte -> ";
32.	for (int idx = 0; idx < target_bytes.Length; idx++)
33.	{
34.		this.textBox2.Text += " " + target_bytes[idx].ToString();
35.	}
36.	this.textBox2.Text += "\r\n";
37.	this.textBox2.Text += "\r\nSource String -> ";
38.	this.textBox2.Text += this.textBox1.Text;
39.	this.textBox2.Text += "\r\n";
40.	this.textBox2.Text += "\r\nTarget String -> ";
41.	this.textBox2.Text += s_Decode;
42.	this.textBox2.Text += "\r\n";
43.}
　　　
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