我正在坐在调试一些代码，我在SysUtils.pas中偶然发现了这一行：
procedure ConvertError(ResString: PResStringRec); local;
本地关键字是做什么的？似乎ConvertError函数没有在文件的接口部分中声明，这仅仅是说明函数确实是本地的，还是使用这个指令以外的实际的好处？
解决方法
它可追溯到Linux编译器Kylix。以下是我在Delphi 6语言指南中可以看到的第9-4页：
@H_502_10@
The directive local,which marks routines as unavailable for export,is platform-specific and has no effect in Windows programming.
On Linux,the local directive provides a slight performance optimization for routines that are compiled into a library,but are not exported. The directive can be specified for standalone procedures and functions,but not for methods. A routine declared with local—for example.
06000
—does not refresh the EBX register and hence
- cannot be exported from a library.
- cannot be declared in the interface section of a unit.
- cannot have its address take or be assigned to a procedural-type variable.
- if it is a pure assembler routine,cannot be called from a another unit unless the caller sets up EBX.