C++实现KFC点餐系统

时间:2022-04-04 06:26:32

本文实例为大家分享了C++实现KFC点餐系统的具体代码,供大家参考,具体内容如下

一、题目名称:模拟肯德基收银系统
二、题目内容:

同学们应该都去麦当劳或肯德基吃过快餐吧?请同学们参考肯德基官网的信息模拟肯德基快餐店的收银系统,合理使用C++或Java或Python结合设计模式(2种以上)至少实现系统的以下功能:

1.正常餐品结算和找零。
2.基本套餐结算和找零。
3.使用优惠劵购买餐品结算和找零。
4.可在一定时间段参与店内活动(自行设计或参考官网信息)。
5.模拟打印小票的功能(写到文件中)。

基本要求:

1.程序设计风格良好,控制台界面友好,最多两人一组完成任务。
2.实现功能测试代码,确保程序的健壮性。
3.画出使用的设计模式图。

提高要求:

1.实现可视化界面(使用MFC)。
2.实现会员储值卡功能,完成储值卡消费。
实现当天营业额和餐品销量计算和统计,用数据库记录。

三、算法设计:

C++实现KFC点餐系统

四、代码

1.点餐系统代码

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
#include<iostream>
#include<string>
#include<fstream>
using namespace std;
 
class Food
{
protected:
 string name;
 double price;
 int num;
public:
 virtual double get_sum()
 {
 double sum = price * num;
 return sum;
 }
 virtual void set_name(string name)
 {
 this->name = name;
 }
 virtual string get_name()
 {
 return name;
 }
 virtual void set_price(double price)
 {
 this->price = price;
 }
 virtual double get_price()
 {
 return price;
 }
 virtual void set_num(int num)
 {
 this->num = num;
 }
 virtual int get_num()
 {
 return num;
 }
};
 
class Hamburger :public Food
{
public:
 virtual double get_sum()
 {
 double sum = price * num;
 return sum;
 }
};
 
class Snack :public Food
{
public:
 virtual double get_sum()
 {
 double sum = price * num;
 return sum;
 }
};
 
class Drink :public Food
{
public:
 virtual double get_sum()
 {
 double sum = price * num;
 return sum;
 }
};
 
class Set :public Food
{
public:
 virtual double get_sum()
 {
 double sum = price * num;
 return sum;
 }
};
 
class Factory
{
public:
 virtual Food* food() = 0;
};
 
class Factory_Hamburger :public Factory
{
public:
 Food* food()
 {
 return new Hamburger;
 }
};
 
class Factory_Snack :public Factory
{
public:
 Food* food()
 {
 return new Snack;
 }
};
 
class Factory_Drink :public Factory
{
public:
 Food* food()
 {
 return new Drink;
 }
};
 
class Factory_Set :public Factory
{
public:
 Food* food()
 {
 return new Set;
 }
};
 
class xiaopiao
{
 public:
 virtual void output() = 0;
} ;
 
class H1 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "巨无霸--" << num << "份" <<endl;
 outfile << "巨无霸--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class H2 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "双层吉士汉堡--" << num << "份" <<endl;
 outfile << "双层吉士汉堡--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class H3 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "麦辣鸡腿汉堡--" << num << "份" <<endl;
 outfile << "麦辣鸡腿汉堡--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class S1 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "大薯条--" << num << "份" <<endl;
 outfile << "大薯条--" << num << "份" << endl;
 outfile.close();
 }
 
  }
protected:
 int num;
};
 
class S2 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "麦乐鸡--" << num << "份" <<endl;
 outfile << "麦乐鸡--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class D1 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "可口可乐--" << num << "份" <<endl;
 outfile << "可口可乐--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class D2 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "七喜--" << num << "份" <<endl;
 outfile << "七喜--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class D3 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "橙汁--" << num << "份" <<endl;
 outfile << "橙汁--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class SET1 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
  ofstream outfile("receipt.dat", ios::out);
 cout << "巨无霸超值套餐--" << num << "份" <<endl;
 outfile << "巨无霸超值套餐--" << num << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
 
class SET2 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   
 if(0 != num)
 {
 ofstream outfile("receipt.dat", ios::out);
 cout << "双层吉士汉堡超值套餐--" << 1 << "份" <<endl;
 outfile << "双层吉士汉堡超值套餐--" << 1 << "份" << endl;
 outfile.close();
 }
  }
protected:
 int num;
};
//运用策略模式简化
class Context
{
public:
  Context(xiaopiao *p) : pStrategy(p)
  {
  }
  void Interface()
  {
   pStrategy->output();
  }
private:
  xiaopiao *pStrategy;
};
 
 
class collect
{
private:
 
public:
 void main_menu()
 {
 cout << "---------------------" << endl;
 cout << "欢迎进入肯德基点餐系统!" << endl;
 cout << "---------------------" << endl;
 cout << "请问你选择单点(1)或者套餐(2):" << endl;
 }
 void single_menu()
 {
 cout << "---------------------" << endl;
 cout << "请选择您要点的产品: " << endl;
 cout << "主食:  " << endl;
 cout << " 1.巨无霸  --17元 " << endl;
 cout << " 2.双层吉士汉堡--15元 " << endl;
 cout << " 3.麦辣鸡腿汉堡--15元 " << endl;
 cout << "配餐:  " << endl;
 cout << " 4.大薯条  --11元 " << endl;
 cout << " 5.麦乐鸡  --9元 " << endl;
 cout << "饮料:  " << endl;
 cout << " 6.可口可乐 --7元 " << endl;
 cout << " 7.七喜  --7元 " << endl;
 cout << " 8.橙汁  --10元 " << endl;
 cout << "若点餐结束,请输入0以结束点餐!" << endl;
 }
 void set_menu()
 {
 cout << "---------------------" << endl;
 cout << "请选择您要点的套餐: " << endl;
 cout << " 1.巨无霸超值套餐 --25元" << endl;
 cout << " (包含巨无霸一份、大薯条一份、可口可乐一份)" << endl;
 cout << " 2.双层吉士汉堡超值套餐 --23元" << endl;
 cout << " (包含双层吉士汉堡一份、大薯条一份、可口可乐一份)" << endl;
 cout << "若点餐结束,请输入0以结束点餐!" << endl;
 }
 void menu()
 {
 main_menu();
 int choose;
 int hamburger[3], snack[2], drink[3],set[2];
 for (int i = 0; i < 3; i++) { hamburger[i] = 0; drink[i] = 0; }
 for (int i = 0; i < 2; i++) { snack[i] = 0; set[i] = 0; }
 cin >> choose;
 if (1 == choose)
 {
 single_menu();
 int ch,flag=1;
 while(flag)
 {
 cout << "请输入对应商品的序号:" ;
 cin >> ch;
 switch (ch)
 {
 case(0):
 {
  flag = 0;
  break;
 }
 case(1):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  hamburger[0] = number;
  break;
 }
 case(2):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  hamburger[1] = number;
  break;
 }
 case(3):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  hamburger[2] = number;
  break;
 }
 case(4):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  snack[0] = number;
  break;
 }
 case(5):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  snack[1] = number;
  break;
 }
 case(6):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  drink[0] = number;
  break;
 }
 case(7):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  drink[1] = number;
  break;
 }
 case(8):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  drink[2] = number;
  break;
 }
 default:
 {
  cout << "请输入正确的序号!" << endl;
  break;
 }
 }
 }
 }
 else if (2 == choose)
 {
 set_menu();
 int ch, flag = 1;
 while (flag)
 {
 cout << "请输入对应商品的序号:";
 cin >> ch;
 switch (ch)
 {
 case(0):
 {
  flag = 0;
  break;
 }
 case(1):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  set[0] = number;
  break;
 }
 case(2):
 {
  cout << "请输入需要几份?:";
  int number;
  cin >> number;
  set[1] = number;
  break;
 }
 
 default:
 {
  cout << "请输入正确的序号!" << endl;
  break;
 }
 }
 }
 }
 //生成汉堡工厂类
 Factory_Hamburger* fac_h = new Factory_Hamburger();
 //生成具体的汉堡类
 Food* hamburger1 = fac_h->food();
 Food* hamburger2 = fac_h->food();
 Food* hamburger3 = fac_h->food();
 //实例化各个汉堡
 //巨无霸
 hamburger1->set_name("巨无霸");
 hamburger1->set_price(17);
 hamburger1->set_num(hamburger[0]);
 //双层吉士汉堡
 hamburger2->set_name("双层吉士汉堡");
 hamburger2->set_price(15);
 hamburger2->set_num(hamburger[1]);
 //麦辣鸡腿汉堡
 hamburger3->set_name("麦辣鸡腿汉堡");
 hamburger3->set_price(15);
 hamburger3->set_num(hamburger[2]);
 
 //生成小吃工厂类
 Factory_Snack* fac_s = new Factory_Snack();
 //生成具体的小吃类
 Food* snack1 = fac_s->food();
 Food* snack2 = fac_s->food();
 //实例化各个小吃
 //大薯条
 snack1->set_name("大薯条");
 snack1->set_price(11);
 snack1->set_num(snack[0]);
 //麦乐鸡
 snack2->set_name("麦乐鸡");
 snack2->set_price(9);
 snack2->set_num(snack[1]);
 
 //生成饮料工厂类
 Factory_Drink* fac_d = new Factory_Drink();
 //生成具体的饮料类
 Food* drink1 = fac_d->food();
 Food* drink2 = fac_d->food();
 Food* drink3 = fac_d->food();
 //实例化各个饮料
 //可口可乐
 drink1->set_name("可口可乐");
 drink1->set_price(7);
 drink1->set_num(drink[0]);
 //七喜
 drink2->set_name("七喜");
 drink2->set_price(7);
 drink2->set_num(drink[1]);
 //橙汁
 drink3->set_name("橙汁");
 drink3->set_price(7);
 drink3->set_num(drink[2]);
 
 //生成套餐工厂类
 Factory_Set* fac_se = new Factory_Set();
 //生成具体的套餐类
 Food* set1 = fac_se->food();
 Food* set2 = fac_se->food();
 //实例化各个套餐
 //巨无霸超值套餐
 set1->set_name("巨无霸超值套餐");
 set1->set_price(25);
 set1->set_num(set[0]);
 //双层吉士汉堡超值套餐
 set2->set_name("双层吉士汉堡超值套餐");
 set2->set_price(23);
 set2->set_num(set[1]);
 
 //找零部分
 cout << "---------------------" << endl;
 double sum = 0;
 sum = sum + hamburger1->get_sum();
 sum = sum + hamburger2->get_sum();
 sum = sum + hamburger3->get_sum();
 sum = sum + snack1->get_sum();
 sum = sum + snack2->get_sum();
 sum = sum + drink1->get_sum();
 sum = sum + drink2->get_sum();
 sum = sum + drink3->get_sum();
 sum = sum + set1->get_sum();
 sum = sum + set2->get_sum();
 cout << "您共计消费:" << sum << endl;
 cout << "请问您是否使用优惠券?(输入0已接受)";
 int ch;
 cin >> ch;
 int yhq=0;
 if (0 == ch)
 {
 cout << "您拥有如下优惠券:" << endl;
 cout << "-1.满50减5" << endl;
 cout << "-2.满100减15" << endl;
 cout << "-3.满200减40" << endl;
 cout << "每次消费仅能使用一张优惠券,请选择使用的优惠券" << endl;
 int flag = 1;
 while (flag)
 {
 int ch;
 cin >> ch;
 if (ch == 1)
 {
  if (sum > 50) { sum -= 5; cout << "使用消费券成功!"; }
  else { cout << "您的消费金额还不能使用优惠券!" << endl; }
  flag = 0;
 }
 if (ch == 2)
 {
  if (sum > 100) { sum -= 15; cout << "使用消费券成功!";}
  else { cout << "您的消费金额还不能使用优惠券!" << endl; }
  flag = 0;
 }
 if (ch == 3)
 {
  if (sum > 200) { sum -= 40; cout << "使用消费券成功!";}
  else { cout << "您的消费金额还不能使用优惠券!" << endl; }
  flag = 0;
 }
 if (ch == 0)
 {
  cout << "不使用优惠券" << endl;
  flag = 0;
 }
 }
 }
 cout << "请问您支付多少:";
 double pay;
 cin >> pay;
 double payback = pay - sum;
 while (0 > payback)
 {
 cout << "您好,您的钱不够本次消费(微笑.jpg),请重给,谢谢您哦~";
 cin >> pay; 
 payback = pay - sum;
 }
 cout << "共计收您" << pay << "元。" << endl;
 cout << "找零为:" << payback << "元" << endl;
 int cho;
 cout << "---------------------" << endl;
 cout << "请选择是否打印小票:(输入0以打印)" << endl;
 cin >> cho;
 if (0 == cho)
 {
 //打印小票部分
 
 /*
 ofstream outfile("receipt.dat", ios::out);
 cout << "---------------------" << endl;
 outfile << "---------------------" << endl;
 cout << "欢迎来到肯德基欢乐餐厅!" << endl;
 outfile << "欢迎来到肯德基欢乐餐厅!" << endl;
 cout << "您共计点餐:" << endl;
 outfile << "您共计点餐:" << endl;
 cout << endl;
 outfile << endl;
 if (0 != hamburger[0]) { cout << "巨无霸--" << hamburger[0] << "份" <<endl;outfile << "巨无霸--" << hamburger[0] << "份" << endl; }
 if (0 != hamburger[1]) { cout << "双层吉士汉堡--" << hamburger[1] << "份" << endl;outfile << "双层吉士汉堡--" << hamburger[1] << "份" << endl; }
 if (0 != hamburger[2]) { cout << "麦辣鸡腿汉堡--" << hamburger[2] << "份" << endl; outfile << "麦辣鸡腿汉堡--" << hamburger[2] << "份" << endl;}
 if (0 != snack[0]) { cout << "大薯条--" << snack[0] << "份" << endl;outfile << "大薯条--" << snack[0] << "份" << endl; }
 if (0 != snack[1]) { cout << "麦乐鸡--" << snack[1] << "份" << endl; outfile << "麦乐鸡--" << snack[1] << "份" << endl;}
 if (0 != drink[0]) { cout << "可口可乐--" << drink[0] << "份" << endl;outfile << "可口可乐--" << drink[0] << "份" << endl; }
 if (0 != drink[1]) { cout << "七喜--" << drink[1] << "份" << endl; outfile << "七喜--" << drink[1] << "份" << endl;}
 if (0 != drink[2]) { cout << "橙汁--" << drink[2] << "份" << endl;outfile << "橙汁--" << drink[2] << "份" << endl; }
 if (0 != set[0]) { cout << "巨无霸超值套餐--" << set[0] << "份" << endl;outfile << "巨无霸超值套餐--" << set[0] << "份" << endl; }
 if (0 != set[1]) { cout << "双层吉士汉堡超值套餐--" << set[1] << "份" << endl; outfile << "双层吉士汉堡超值套餐--" << set[1] << "份" << endl;}
 cout << "---------------------" << endl;
 outfile << "---------------------" << endl;
 cout << "共计收您" << pay << "元。" << endl;
 outfile << "共计收您" << pay << "元。" << endl;
 cout << "找零为:" << payback << "元" << endl;
 outfile << "找零为:" << payback << "元" << endl;
 */
 ofstream outfile("receipt.dat", ios::out);
 cout << "---------------------" << endl;
 outfile << "---------------------" << endl;
 cout << "欢迎来到肯德基欢乐餐厅!" << endl;
 outfile << "欢迎来到肯德基欢乐餐厅!" << endl;
 cout << "您共计点餐:" << endl;
 outfile << "您共计点餐:" << endl;
 cout << endl;
 outfile << endl;
 H1 *h1 = new H1;
 h1->get_num(hamburger[0]);
 H2 *h2 = new H2;
 h2->get_num(hamburger[1]);
 H3 *h3 = new H3;
 h3->get_num(hamburger[2]);
 S1 *s1 = new S1;
 s1->get_num(snack[0]);
 S2 *s2 = new S2;
 s2->get_num(snack[1]);
 D1 *d1 = new D1;
 d1->get_num(drink[0]);
 D2 *d2 = new D2;
 d2->get_num(drink[1]);
 D3 *d3 = new D3;
 d3->get_num(drink[2]);
 SET1 *set1 = new SET1;
 set1->get_num(set[0]);
 SET2 *set2 = new SET2;
 set2->get_num(set[1]);
 Context *ph1 = new Context(h1);
 Context *ph2 = new Context(h2);
 Context *ph3 = new Context(h3);
 Context *ps1 = new Context(s1);
 Context *ps2 = new Context(s1);
 Context *pd1 = new Context(d1);
 Context *pd2 = new Context(d2);
 Context *pd3 = new Context(d3);
 Context *pset1 = new Context(set1);
 Context *pset2 = new Context(set2);
 ph1->Interface();
 ph2->Interface();
 ph3->Interface();
 ps1->Interface();
 ps2->Interface();
 pd1->Interface();
 pd2->Interface();
 pd3->Interface();
 pset1->Interface();
 pset2->Interface();
 cout << endl;
 outfile << endl;
 cout << "---------------------" << endl;
 outfile << "---------------------" << endl;
 cout << "---------------------" << endl;
 outfile << "---------------------" << endl;
 cout << endl;
 outfile << endl;
 cout << "共计收您" << pay << "元。" << endl;
 outfile << "共计收您" << pay << "元。" << endl;
 cout << "找零为:" << payback << "元" << endl;
 outfile << "找零为:" << payback << "元" << endl;
 outfile.close();
 //运用策略模式简化上列大量if语句
 }
 
 }
};
 
 
int main()
{
 collect c;
 c.menu();
 
}

2.测试代码

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
#include <iostream>
#include <fstream>
using namespace std;
 
class xiaopiao
{
 public:
 virtual void output() = 0;
} ;
 
class H1 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "巨无霸--" << num << "份" <<endl;
 outfile << "巨无霸--" << num << "份" << endl;
 outfile.close();
  }
protected:
 int num;
};
 
class H2 : public xiaopiao
{
public:
 void get_num(int n)
 {
 num = n;
 }
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "双层吉士汉堡--" << num << "份" <<endl;
 outfile << "双层吉士汉堡--" << num << "份" << endl;
 outfile.close();
  }
  protected:
 int num;
};
 
class H3 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "麦辣鸡腿汉堡--" << 1 << "份" <<endl;
 outfile << "麦辣鸡腿汉堡--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class S1 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "大薯条--" << 1 << "份" <<endl;
 outfile << "大薯条--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class S2 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "麦乐鸡--" << 1 << "份" <<endl;
 outfile << "麦乐鸡--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class D1 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "可口可乐--" << 1 << "份" <<endl;
 outfile << "可口可乐--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class D2 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "七喜--" << 1 << "份" <<endl;
 outfile << "七喜--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class D3 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "橙汁--" << 1 << "份" <<endl;
 outfile << "橙汁--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class SET1 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "巨无霸超值套餐--" << 1 << "份" <<endl;
 outfile << "巨无霸超值套餐--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class SET2 : public xiaopiao
{
public:
  void output()
  {
   ofstream outfile("receipt.dat", ios::out);
 cout << "双层吉士汉堡超值套餐--" << 1 << "份" <<endl;
 outfile << "双层吉士汉堡超值套餐--" << 1 << "份" << endl;
 outfile.close();
  }
};
 
class Context
{
public:
  Context(xiaopiao *p) : pStrategy(p)
  {
  }
  void Interface()
  {
   pStrategy->output();
  }
private:
  xiaopiao *pStrategy;
};
 
int main()
{
 ofstream outfile("receipt.dat", ios::out);
 cout << "---------------------" << endl;
 outfile << "---------------------" << endl;
 cout << "欢迎来到麦当劳欢乐餐厅!" << endl;
 outfile << "欢迎来到麦当劳欢乐餐厅!" << endl;
 cout << "您共计点餐:" << endl;
 outfile << "您共计点餐:" << endl;
 cout << endl;
 outfile << endl;
 H1 *h1 = new H1;
 h1->get_num(2);
 H2 *h2 = new H2;
 h2->get_num(3);
 H3 *h3 = new H3;
 S1 *s1 = new S1;
 S2 *s2 = new S2;
 D1 *d1 = new D1;
 D2 *d2 = new D2;
 D3 *d3 = new D3;
 SET1 *set1 = new SET1;
 SET2 *set2 = new SET2;
 Context *ph1 = new Context(h1);
 Context *ph2 = new Context(h2);
 Context *ph3 = new Context(h3);
 Context *ps1 = new Context(s1);
 Context *ps2 = new Context(s1);
 Context *pd1 = new Context(d1);
 Context *pd2 = new Context(d2);
 Context *pd3 = new Context(d3);
 Context *pset1 = new Context(set1);
 Context *pset2 = new Context(set2);
 ph1->Interface();
 ph2->Interface();
 ph3->Interface();
 ps1->Interface();
 ps2->Interface();
 pd1->Interface();
 pd2->Interface();
 pd3->Interface();
 pset1->Interface();
 pset2->Interface();
 if (h1) delete h1;
 if (h2) delete h2;
 if (h3) delete h3;
 if (s1) delete s1;
 if (s2) delete s2;
 if (d1) delete h1;
 if (d2) delete d2;
 if (d3) delete d3;
 if (set1) delete set1;
 if (set2) delete set2;
}

五、结果展示

C++实现KFC点餐系统

六、总结

1.本次作业为KFC点餐系统,刚开始的想法是用Java做,但是在看了许多资料结合自己的情况,最终采用C++来写程序,C++确实较Java熟悉了很多。
2.这次只做了基本要求,没有做提高要求,我会在后面的学习中,结合可视化界面和数据库连接,将点餐系统完善。
3.主要运用到设计模式中的策略模式和工厂模式,其中工厂模式负责生产餐厅中的各种食物的对象,策略模式负责在生成小票时避免出现冗杂的if语句。
4.从RPG游戏和KFC点餐系统两次的作业来看,这两次的代码认为量来说都是比较大的,对于其中的一些函数功能的使用,还有设计模式的理解并且不到位。

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。

原文链接:https://blog.csdn.net/weixin_44622101/article/details/106486026