Description: Interface part and the operational part of the physical separation. The operational part and the interface separately compiled dll and exe executable file. Part of the definition of an interface in order to achieve the interface between the part and the operational part of the communication. Interface part of the interface or abstract class can be used to achieve. The interface must maintain a stable, easy not to change the interface unit in the content. Interface can also be reserved to meet future growth in demand functions. Constantly changing business is usually part of the object by modifying the DLL package implementation methods to upgrade DLL, without having to re-modify and compile interface part of the Exe file.
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File list (Check if you may need any files):
dbdemos.mdb
Idata.dcu
Idata.pas
opeDataSet.cfg
opeDataSet.dll
opeDataSet.dof
opeDataSet.dpr
opeDataSet.res
Project1.cfg
Project1.dof
Project1.dpr
Project1.exe
Project1.res
Unit1.dcu
Unit1.ddp
Unit1.dfm
Unit1.pas
untOpeDataSet.dcu
untOpeDataSet.pas
使用DLL封装业务逻辑.txt
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