delphi 做了个DLL

library Project2; { Important note about DLL memory management: ShareMem must be the ? first unit in your library's USES clause AND your project's (select ? Project-View Source) USES clause if your DLL exports any procedures or ? functions that pass strings as parameters or function results. This ? applies to all strings passed to and from your DLL--even those that ? are nested in records and classes. ShareMem is the interface unit to ? the BORLNDMM.DLL shared memory manager,which must be deployed along ? with your DLL. To avoid using BORLNDMM.DLL,pass string information ? using PChar or ShortString parameters. } uses ? SysUtils,? Classes,? Dialogs; procedure teststr(); stdcall; ? begin ? ? showmessage('pxb'); ? end; {$R *.res} ? exports ? ? teststr; begin end.