Delphi 2006 system.delete 宽字符串？
是否有可用于宽字符串的删除过程的对应项？或者我应该只使用复制并连接生成的 WideStrings？
is there a counterpart of the Delete procedure that could be used for widestrings? Or should I just use copy and concatenate the resulting WideStrings?
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删除是一个“编译器魔法”功能。编译器利用其基本数据类型的知识来适当地处理操作。对于大多数数组，它可以简单地将您在代码中写入的信息转换为实际的偏移量和需要删除的字节数，并将其传递给
_Delete汇编例程。对于 WideStrings，正如 Alexander 指出的，它有一个特殊的 _WStrDelete 例程。底线：如果您可以将数组或字符串传递给Delete并且它可以编译，那么它应该运行得很好。
Delete is a "compiler magic" function. The compiler uses its knowledge of the basic data type to handle the operation appropriately. For most arrays, it can simply translate the information you write in your code into the actual offset and number of bytes that need to be deleted, and passes that to the
_Deleteassembly routine instead. For WideStrings, as Alexander pointed out, it's got a special _WStrDelete routine.Bottom line: If you can pass an array or string to Delete and it compiles, it should run just fine.
内部 RTL 函数（如删除、插入、长度等）适用于 Ansi 和 Wide 字符串。
例如，对 WideString 的删除调用会转换为 WStrDelete 调用（请参阅 System.pas）。
Internal RTL functions like Delete, Insert, Length, etc works both for Ansi and Wide strings.
For example, Delete call on WideString is transformed into WStrDelete call (see System.pas).