Design pattern-builder Mode/Generator mode (c + + implementation)

1#include <iostream>2#include <string>3 4 using namespacestd;5 6 classstproduct7 {8  Public:9         voidSetA (stringstr)Ten         { OneM_a =str; A         } -  -         voidSETB (stringstr) the         { -M_b =str; -         } -  +         voidSETC (stringstr) -         { +M_c =str; A         } at  -         voidShow () -         { -cout<<"Product:"<< m_a<<"!\t"<< m_b<<"!\t"<< m_c<<Endl; -         } -  in Private: -         stringm_a; to         stringM_b; +         stringM_c; - }; the  * classStbuilder $ {Panax Notoginseng  Public: - Stbuilder () the         { +M_pstproduct =Newstproduct (); A         } the         Virtual~Stbuilder () +         { -                 Deletem_pstproduct; $         } $  -         Virtual voidBuildparta () =0; -         Virtual voidBUILDPARTB () =0; the         Virtual voidBUILDPARTC () =0; - Wuyi         Virtualstproduct*GetResult () the         { -                 returnm_pstproduct; Wu         } -  Aboutstproduct*m_pstproduct; $ }; -  - classStconcretebuilder: PublicStbuilder - { A  Public: +         Virtual voidBuildparta () the         { -M_pstproduct->seta ("A Style"); $         } the  the         Virtual voidBUILDPARTB () the         { theM_PSTPRODUCT-&GT;SETB ("B Style"); -         } in  the         Virtual voidBUILDPARTC () the         { AboutM_PSTPRODUCT-&GT;SETC ("C Style"); the         } the }; the  + classStdirector - { the  Public:Bayi~Stdirector () the         { the                 DeleteM_pstbuilder; -         } -  the         voidSetbuilder (stbuilder*Psttmpbuilder) the         { theM_pstbuilder =Psttmpbuilder; the         } -  thestproduct*Construct () the         { theM_pstbuilder->Buildparta ();94M_pstbuilder->BUILDPARTB (); theM_pstbuilder->BUILDPARTC (); the  the                 returnM_pstbuilder->GetResult ();98         } About  -stbuilder*M_pstbuilder;101 };102 103 intMainintargcChar*argv[])104 { thestbuilder* Pstbuilder =NewStconcretebuilder ();106 107stdirector* Pstdirector =Newstdirector ();108Pstdirector->Setbuilder (pstbuilder);109  thestproduct* pstproduct = pstdirector->Construct ();111cout<<"Show ... .... ......."<<Endl; thePstproduct->Show ();113  the         return 0; the } the //////////////////////////////////////117[Email protected] ~/learn_code/design_pattern/10_builder]$.Builder118 Show ... .... .......119Product:a style!        B style! C Style

Reference: http://design-patterns.readthedocs.io/zh_CN/latest/creational_patterns/builder.html

Design pattern-builder Mode/Generator mode (c + + implementation)