1 #include<iostream>
2 #include<string.h>
3 #include<stdlib.h>
4 using namespace std;
5 class Card
6 {
7 protected:
8 float remain;
9 public:
10 Card(){}
11 Card(float _remain):remain(_remain){}
12 float Getremain(){return remain;}
13 float credit(float _price);
14 float recharge(float moneny);
15 virtual void showmoney()=0;
16 virtual void isme(float a)=0;
17 virtual void showinfo()=0;
18 virtual const char* Getname()=0;
19 //virtual bool operator >(Card *c) = 0;
20 };
21
22 class Stu : public Card
23 {
24 protected:
25 int stunum;
26 const char *name;
27 public:
28 Stu(){}
29 Stu(int num,const char* _name):stunum(num),name(_name){}
30 Stu(float _remain,int num,const char *_name):Card(_remain),stunum(num),name(_name){}
31 void showmoney();
32 void isme(float a);
33 void showinfo();
34 const char *Getname() {return name;}
35 bool operator >(Card *c);
36 };
37 bool Stu::operator >(Card *c)
38 {
39 if(remain>c->Getremain())
40 return true;
41 else
42 return
43 false;
44 }
45 void Stu::showmoney()
46 {}
47 void Stu::isme(float a)
48 {
49 remain=remain - a;
50
51 }
52 void Stu::showinfo()
53 {
54 cout<<name<<"\t"<<stunum<<"\t"<<remain<<"\t"<<endl;
55 }
56
57 class Gra:public Stu
58 {
59 private:
60 float wage;
61
62 public:
63 Gra(float _remain,int num,const char *_name,float _wage):Stu(_remain,num,_name),wage(_wage){ }
64 void showmoney();
65 void isme(float a);
66 void showinfo();
67 const char *Getname(){return name;}
68 bool operator >(Card *c);
69 };
70 bool Gra::operator >(Card *c)
71 {
72 if(remain>c->Getremain())
73 return true;
74 else
75 return
76 false;
77 }
78 void Gra::showmoney()
79 {}
80 void Gra::isme(float a)
81 {
82 remain = remain-a;
83
84 }
85 void Gra::showinfo()
86 {
87 cout<<name<<"\t"<<stunum<<"\t"<<remain<<"\t"<<wage<<"\t"<<endl;
88 }
89 class Employees :public Card
90 {
91 private:
92 int wonum;
93 const char* ename;
94 public:
95 Employees( float _remain,int _wonum,const char* _ename):Card(_remain),wonum(_wonum),ename(_ename){}
96 void showmoney();
97 void isme(float a);
98 void showinfo();
99 const char *Getname(){return ename;}
100 bool operator >(Card *c);
101 };
102 bool Employees::operator >(Card *c)
103 {
104 if(remain>c->Getremain())
105 return true;
106 else
107 return
108 false;
109 }
110 void Employees::showmoney()
111 {}
112 void Employees::isme(float a)
113 {
114 remain = remain-a;
115
116 }
117 void Employees::showinfo()
118 {
119 cout<<ename<<"\t"<<wonum<<"\t"<<remain<<"\t"<<endl;
120 }
121
122 class Canteen
123 {
124 private:
125 const char* menu;
126 float price;
127 public:
128 Canteen(const char* _menu,float _price):menu(_menu),price(_price){}
129 void showmenu();
130 const char *Getmenu(){return menu;}
131 float getprice(){return price;}
132 };
133 void Canteen::showmenu()
134 {
135 cout<<menu<<"\t"<<price<<"\t"<<endl;
136 }
137 int main()
138 {
139 float tmp = 0;
140 float tmp1 = 160;
141 int i,flag1,flag2,flag3;
142 char pname[20];
143 char foodbuf[20];
144 Canteen c1("fish",10.0);
145 Canteen c2("leek",8.5);
146 Canteen c3("celery",7.2);
147 Canteen c4("cole",5.8);
148 Canteen c5("buds",6.9);
149 Canteen *p1[5]={&c1,&c2,&c3,&c4,&c5};
150 Stu s(150.0,1001,"timi");
151 Stu s1(200.0,1002,"tom");
152 Gra g(180.0,2001,"lucy",700.0);
153 Gra g1(200.0,2002,"jay",700.0);
154 Employees e(190.0,3001,"jimi");
155 Card *p[5] = {&s,&s1,&g,&g1,&e};
156 cout<<"people infomation:\n"<<endl;
157 cout<<"NO.\t"<<"name\t"<<"num\t"<<"remain\t"<<"wage\t"<<endl;
158 for(i=0;i<5;i++)
159 {
160 cout<<i<<"\t";
161 p[i]->showinfo();
162 }
163
164 cout<<"input name who is you:"<<endl;
165 char *cp;
166 cin>>pname; cout<<endl;
167
168 for(i=0;i<5;i++)
169 {
170 if(!strncmp(pname,p[i]->Getname(),strlen(pname)-1))
171 {
172 cout<<"NO.\t"<<"name\t"<<"num\t"<<"remain\t"<<"wage\t"<<endl;
173 cout<<i<<"\t";
174 p[i]->showinfo();
175 flag1 = i;
176 break;
177 }
178
179 }
180
181 while(1)
182 {
183 cout<<"1: list\t\t2: take your order\t3:show max and min\t0:quit\t"<<endl;
184 cout<<"please input your select:"<<endl;
185 int select;
186 cin>>select;
187 switch(select)
188 {
189 case 0: exit(0);
190 case 1:{
191 cout<<"NO.\t"<<"food\t"<<"price\t"<<endl;
192 for(i=0;i<5;i++)
193 {
194 cout<<i<<"\t";
195 p1[i]->showmenu();
196
197 }
198 break;
199 }
200 case 2:{
201 cout<<"NO.\t"<<"food\t"<<"price\t"<<endl;
202 for(i=0;i<5;i++)
203 {
204 //cout<<i<<"\t";
205 p1[i]->showmenu();
206
207 }
208 cout<<"please input which do you like:"<<endl;
209 cin>>foodbuf;
210 for(i=0;i<5;i++)
211 {//cout<<"hello"<<endl;
212 if(!strncmp(foodbuf,p1[i]->Getmenu(),strlen(foodbuf)-1))
213 {
214
215 //cout<<"hello"<<endl;
216 p[flag1]->isme(p1[i]->getprice());
217 cout<<"remaining:"<<p[flag1]->Getremain()<<endl;
218 }
219
220 }
221 for(i=0;i<5;i++)
222 {
223
224 //cout<<"hello\n";
225 if(tmp < p[i]->Getremain())
226 {
227 tmp = p[i]->Getremain();
228 flag2 = i;
229 }
230 }
231
232 for(i=0;i<5;i++)
233 {
234 if(tmp1>p[i]->Getremain())
235 {tmp1 = p[i]->Getremain();
236 flag3 = i;}
237 }
238
239 cout<<"the max is:"<<endl;
240 p[flag2]->showinfo();
241 cout<<"the min is:"<<endl;
242 p[flag3]->showinfo();
243 break;
244 }
245 case 3 :
246 {
247 Card *maxp = p[0],*minp = p[0];
248 for(i=0;i<4;i++)
249 {
250 if(p[i]>p[i+1])
251 {
252 minp = p[i-1];
253 cout<<i<<endl;
254 }
255 }
256 for(i=0;i<4;i++)
257 {
258 if(p[i+1]>p[i])
259 {
260 maxp = p[i];
261 cout<<i-1<<endl;
262 }
263 }
264 cout<<"the min remain is:"<<endl;
265 minp->showinfo();
266 cout<<"the max remain is:"<<endl;
267 maxp->showinfo();
268
269 break;
270 }
271
272 default:{break;}
273 }
274 }
275 }
时间： 2024-11-03 21:34:30