///剛看了繼承和派生 感覺懵懵噠~
/ 簡單的基類
/*#include #includeusing namespace std;
class tabletennisplayer
; char firstname[lim];
char lastname[lim];
bool hastable;
public:
tabletennisplayer(const char *fn = "none", const char *ln = "none", bool ht = false);
void name()const;
bool hastable()const
void resettable(bool v)
};tabletennisplayer::tabletennisplayer(const char *fn, const char* ln, bool ht)
void tabletennisplayer::name()const
class ratedplayer: public tabletennisplayer
void resetrating(unsigned int r)
};ratedplayer::ratedplayer(unsigned int r,const char *fn, const char *ln, bool ht): tabletennisplayer(fn, ln, ht)
ratedplayer::ratedplayer(unsigned int r, const tabletennisplayer & tp):tabletennisplayer(tp), rating(r)
int main()
*//*
ying, zhang:has a table
zeyun, zheng:hasn't a table
name: ying, zhang;rating:1140
name: zeyun, zheng;rating:1440
process returned 0 (0x0) execution time : 6.777 s
press any key to continue.
*//派生類和基類之間的特殊關係
/繼承 is-a關係(is a kind of)
/多型共有繼承
///在兩個類中行為相同的方法 只需在基類中宣告
#include#includeusing namespace std;
class brass
; char fullname[max];
long acctnum;
double balance;
public:
brass(const char *s = "nullbody", long an = -1, double bal = 0.0);
void deposit(double amt);
virtual void withdraw(double amt);
double balance()const;
virtual void viewacct()const;
virtual ~brass(){}
};class brassplus: public brass
void resetrate(double r)
void resetowes()
};brass::brass(const char *s, long an, double bal)
void brass::deposit(double amt)
void brass::withdraw(double amt)
double brass::balance()const
void brass::viewacct()const
brassplus::brassplus(const char *s, long an, double bal, double ml, double r):brass(s, an, bal)
void brassplus::viewacct()const
void brassplus::withdraw(double amt)
else
}int main()
/*client: porcelot pigg
account number: 381299
balance: $4000
client: horatio hogg
account number: 382288
balance: $3000
maxinum loan: $500
owed to bank: $0
loan rate: 10%
depositing $1000 into the hogg account:
new balance: $4000
withdrawing $4200 from the pigg account:
withdrawal amount of $4200 exceeds your balance.
withdrawal canceled
pigg account balance: $4000
withdrawing $4200 from the hogg account:
bank advance: $200
finance charge: $20
client: horatio hogg
account number: 382288
balance: $0
maxinum loan: $500
owed to bank: $220
loan rate: 10%
process returned 0 (0x0) execution time : 4.455 s
press any key to continue.
*/
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