建造者模式原理：建造模式主要是用于產生對象的各個組成部分，而抽象工廠模式則用于產生一系列對象，建造者模式而且要求這些對象的組成部分有序。

代碼如下：

#include <iostream> using namespace std;class Builder { public:virtual void buildHead(){}virtual void buildBody(){}virtual void buildLeftArm(){}virtual void buildRightArm(){}virtual void buildLeftLeg(){}virtual void buildRightLeg(){} }; class BuilderFat:public Builder { public:virtual void buildHead(){cout << "fat head" <<endl;}virtual void buildBody(){cout << "fat Body" << endl;}virtual void buildLeftArm(){cout << "fat Left Arm" <<endl;}virtual void buildRightArm(){cout << "fat Right Arm" <<endl;}virtual void buildLeftLeg(){cout << "fat Left Leg" <<endl;}virtual void buildRightLeg(){cout << "fat Right leg" <<endl;} };class BuilerThin:public Builder { public:virtual void buildHead(){cout << " thin head" <<endl;}virtual void buildBody(){cout << "thin Body" << endl;}virtual void buildLeftArm(){cout << "thin Left Arm" <<endl;}virtual void buildRightArm(){cout << "thin Right Arm" <<endl;}virtual void buildLeftLeg(){cout << "thin Left Leg" <<endl;}virtual void buildRightLeg(){cout << "thin Right leg" <<endl;} };class Director { public:Director(Builder *ptmp = NULL):pBuilder(ptmp){}void createPerson(){pBuilder->buildHead();pBuilder->buildBody();pBuilder->buildLeftArm();pBuilder->buildRightArm();pBuilder->buildRightArm();pBuilder->buildLeftLeg();pBuilder->buildRightLeg();} private:Builder* pBuilder; };int main() {BuilderFat fat;Director *pDirector = new Director(&fat);pDirector->createPerson();delete pDirector;return 0; }

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轉載于:https://www.cnblogs.com/liuweilinlin/p/3203305.html

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