Delphi XE5教程10：Delphi字符集

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1 The Delphi Character Set

1 Delphi字符集

 

The Delphi language uses the Unicode character encoding for its character set, including alphabetic and alphanumeric Unicode characters and the underscore. Delphi is not case-sensitive. The space character and control characters (U+0000 through U+001F including U+000D, the return or end-of-line character) are blanks.

Delphi語言採用Unicode字符編碼做爲其字符集，包括英文字母和字母數字的Unicode字符和下劃線的Unicode字符編碼。 Delphi是不區分大小寫的。空格字符和控制字符（U +0000到U +001F包括U +000D，返回或行尾的字符）顯示爲空白。

 

The RAD Studio compiler will accept a file encoded in UCS-2 or UCS-4 if the file contains a byte order mark. The speed of compilation may be penalized by the use for formats other than UTF-8, however. All characters in a UCS-4 encoded source file must be representable in UCS-2 without surrogate pairs. UCS-2 encodings with surrogate pairs (including GB18030) are accepted only if the codepage compiler option is specified.

RAD Studio編譯器將接受編碼UCS-2或UCS-4的文件，若是文件中包含字節順序標記。編譯的速度可能由於使用UTF-8之外的其餘格式而下降。全部UCS-4中的字符編碼的源文件都必須是可表示的UCS-2代理對。若是指定語言編碼編譯器選項，UCS-2編碼與代理對（包括GB18030）是能夠接受的。

注：UCS-2就是用兩個字節編碼，UCS-4就是用4個字節（實際上只用了31位，最高位必須爲0）編碼。