C# string byte數組轉換實作的過程是什麼呢?C# string byte數組間的轉換需要注意什麼呢?C# string byte數組間轉換所涉及的方法是什麼呢?讓我們來看看具體的内容:
C# string byte數組轉換之string類型轉成byte[]:
byte[] byteArray = System.Text.Encoding.Default.GetBytes ( str );
反過來,byte[]轉成string:
string str = System.Text.Encoding.Default.GetString ( byteArray );
其它編碼方式的,如System.Text.UTF8Encoding,System.Text.UnicodeEncoding class等;例如:
string類型轉成ASCII byte[]:("01" 轉成 byte[] = new byte[]{ 0x30, 0x31})
- byte[] byteArray = System.Text.Encoding.ASCII.GetBytes ( str );
ASCII byte[] 轉成string:(byte[] = new byte[]{ 0x30, 0x31} 轉成 "01")
- string str = System.Text.Encoding.ASCII.GetString ( byteArray );
有時候還有這樣一些需求:
byte[] 轉成原16進制格式的string,例如0xae00cf, 轉換成 "ae00cf";new byte[]{ 0x30, 0x31}轉成"3031":
- public static string ToHexString ( byte[] bytes ) // 0xae00cf => "AE00CF "
- {
- string hexString = string.Empty;
- if ( bytes != null )
- {
- StringBuilder strB = new StringBuilder ();
- for ( int i = 0; i < bytes.Length; i++ )
- {
- strB.Append ( bytes[i].ToString ( "X2" ) );
- }
- hexString = strB.ToString ();
- }
- return hexString;
- }
C# string byte數組轉換之16進制格式的string 轉成byte[]
例如, "ae00cf"轉換成0xae00cf,長度縮減一半;"3031" 轉成new byte[]{ 0x30, 0x31}:
- public static byte[] GetBytes(string hexString, out int discarded)
- {
- discarded = 0;
- string newString = "";
- char c;
- // remove all none A-F, 0-9, characters
- for (int i=0; i
- {
- c = hexString[i];
- if (IsHexDigit(c))
- newString += c;
- else
- discarded++;
- }
- // if odd number of characters, discard last character
- if (newString.Length % 2 != 0)
- {
- discarded++;
- newString = newString.Substring(0, newString.Length-1);
- }
- int byteLength = newString.Length / 2;
- byte[] bytes = new byte[byteLength];
- string hex;
- int j = 0;
- for (int i=0; i
- {
- hex = new String(new Char[] {newString[j], newString[j+1]});
- bytes[i] = HexToByte(hex);
- j = j+2;
- }
- return bytes;
- }
C# string byte數組轉換的問題就向你介紹到這裡,希望對你了解和學習C# string byte數組轉換有所幫助。