UML类图详解_泛化关系

泛化其实就是继承关系，还是比较简单的，那么我们就把之前有些问题的博客UML类图重新来实现一次。

依旧是这个图

下面我们来看一个例子

Account.h

 1 #include <cstdlib>
 2 #include <vector>
 3 #include "Bid.h" 
 4 using namespace std;
 5  
 6 class Account 
 7 {
 8 public:
 9     void setBid(Bid*); 
10     int calcAsset(); 
11 private:
12     vector<Bid*> bidObj;
13 };

Account.cpp

 1 #include "Account.h"
 2             
 3 void Account::setBid(Bid *theBid)
 4 { 
 5      bidObj.push_back(theBid);
 6 }
 7 
 8 int Account::calcAsset()
 9 {
10      int size,theAsset=0;
11      size=bidObj.size();
12      for(int i=0;i<size;i++)
13          theAsset=theAsset+bidObj[i]->calcAsset();
14      return theAsset; 
15 }

Bid.h

 1 #include "Fund.h" 
 2  
 3 class Bid 
 4 {
 5 public:
 6     void setFund(Fund*);
 7     virtual int calcAsset()=0; 
 8     virtual float getUnit()=0;
 9 protected:
10     Fund *fundObj; 
11 };

Bid.cpp

1 #include "Bid.h"
2 
3 void Bid::setFund(Fund *theFund)
4 {
5      fundObj=theFund;
6 }

Fund.h

1 class Fund
2 { 
3 public:
4     Fund(float);
5     float getPrice();
6 private:
7     float price;
8 };

Fund.cpp

 1 #include "Fund.h"
 2 
 3 Fund::Fund(float thePrice)
 4 {
 5     price=thePrice;
 6 }
 7 
 8 float Fund::getPrice()
 9 {
10     return price;
11 }

SingleBid.h

1 class SingleBid : public Bid
2 {
3 public:
4     SingleBid(float);    
5     int calcAsset();
6     float getUnit(); 
7 private: 
8        float unit;
9 };

SingleBid.cpp

 1 #include "SingleBid.h"
 2 
 3 SingleBid::SingleBid(float theUnit)
 4 {
 5     unit=theUnit; 
 6 } 
 7 
 8 int SingleBid::calcAsset()
 9 {
10     return unit*fundObj->getPrice();
11 }
12 
13 float SingleBid::getUnit()
14 {
15     return unit;
16 }

RegularBid.h

 1 #include <cstdlib>
 2 #include <vector>
 3 #include "BidItem.h" 
 4 #include "Bid.h"
 5 using namespace std;
 6 
 7 class RegularBid : public Bid
 8 {
 9 public:
10     RegularBid();  
11     int calcAsset();
12     float getUnit();   
13     
14 private:
15     vector<BidItem*> itemObj;
16 };

RegularBid.cpp

 1 #include "RegularBid.h"
 2 
 3 RegularBid::RegularBid()
 4 {
 5     BidItem *myItem; 
 6     myItem=new BidItem(59.53); 
 7     itemObj.push_back(myItem);
 8     myItem=new BidItem(89.85); 
 9     itemObj.push_back(myItem);
10     myItem=new BidItem(91.45); 
11     itemObj.push_back(myItem);
12 } 
13 
14 float RegularBid::getUnit()
15 {
16     int size;
17     float theUnit=0;
18     size=itemObj.size();
19     for(int i=0;i<size;i++)
20          theUnit=theUnit+itemObj[i]->getUnit();
21     return theUnit;   
22 } 
23 
24 int RegularBid::calcAsset()
25 {
26     return getUnit()*fundObj->getPrice();
27 }

BidItem.h

1 class BidItem 
2 {
3 public:
4     BidItem(float); 
5     float getUnit();
6 private:
7     float unit;
8 };

BidItem.cpp

 1 #include "BidItem.h"
 2 
 3 BidItem::BidItem(float theUnit)
 4 { 
 5      unit=theUnit;
 6 }
 7 
 8 float BidItem::getUnit()
 9 {
10     return unit;
11 }

main.cpp

 1 // main.cpp
 2 //
 3 
 4 #include <cstdlib>
 5 #include <iostream>
 6 #include "SingleBid.h"
 7 #include "RegularBid.h"
 8 #include "Account.h" 
 9 #include "Fund.h" 
10 using namespace std; 
11  
12 int main(int argc, char *argv[])
13 { 
14     Fund *myFund; 
15     SingleBid *mySingleBid; 
16     RegularBid *myRegularBid; 
17     Account myAccount; 
18     
19     myFund=new Fund(19.84); 
20     mySingleBid=new SingleBid(935.76);
21     mySingleBid->setFund(myFund); 
22     myAccount.setBid(mySingleBid); 
23     cout << "大华大华基金单位及净值： "
24          << "(" << mySingleBid->getUnit() << ")"
25          << "(" << myFund->getPrice() << ")" << endl; 
26          
27     myFund=new Fund(37.83); 
28     mySingleBid=new SingleBid(721.45);
29     mySingleBid->setFund(myFund); 
30     myAccount.setBid(mySingleBid);
31     cout << "日盛上选基金单位及净值： "
32          << "(" << mySingleBid->getUnit() << ")"
33          << "(" << myFund->getPrice() << ")" << endl;
34     
35     myFund=new Fund(49.61); 
36     myRegularBid=new RegularBid();
37     myRegularBid->setFund(myFund); 
38     myAccount.setBid(myRegularBid);
39     cout << "富邦长虹基金单位及净值： "
40          << "(" << myRegularBid->getUnit() << ")"
41          << "(" << myFund->getPrice() << ")" << endl << endl;
42     
43     cout << "总资产为： "
44          << myAccount.calcAsset() << endl << endl;
45            
46     system("PAUSE");
47     return EXIT_SUCCESS;
48 }

下面我们来画一下UML图，并且用UML自动生成C++代码来做一个比较

生成代码对比

Account.h

达到预期

Bid.h

达到预期
Fund.h

达到预期

SingleBid.h

达到预期

RegularBid.h

达到预期

BidItem.h

达到预期

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原文地址：https://www.cnblogs.com/abc-begin/p/7750506.html