1 const unsigned int strsize = 50;
2 struct bop //结构体就像一个数据类型如int 使用前应该先给他一个变量如本题中的bop
3 {
4 char fullname[strsize]; // real name
5 char title[strsize]; // job title
6 char bopname[strsize]; // secret BOP name
7 int preference; // 0 = fullname, 1 = title, 2 = bopname
8 }; //如果在这里用 typedef struct bop{}bop1; 在下面初始化和传参的时候就可以将 const struct bop 变为const bop1;
9 void display_by_name(const struct bop *bopArray, unsigned int size) //const 最小授权 结构体不会被改变 boparray还是一个数组 数组在传递的时候 一般用地址传递 就是指针传递 传递数组时要带上它的数组规模
10 {
11 for (size_t i = 0; i < size; i++)
12 {
13 cout << bopArray[i].fullname << endl; //调用结构体中成员的方式
14 }
15 }
16 void display_by_title(const struct bop *bopArray, unsigned int size)
17 {
18 for (size_t i = 0; i < size; i++)
19 {
20 cout << bopArray[i].title << endl;
21 }
22 }
23 void display_by_bopname(const struct bop *bopArray, unsigned int size)
24 {
25 for (size_t i = 0; i < size; i++)
26 {
27 cout << bopArray[i].bopname << endl;
28 }
29 }
30 void display_by_preference(const struct bop *bopArray, unsigned int size)
31 {
32 for (size_t i = 0; i < size; i++)
33 {
34 if (bopArray[i].preference == 0)
35 {
36 cout << bopArray[i].fullname << endl;
37 }
38 else if (bopArray[i].preference == 1)
39 {
40 cout << bopArray[i].title << endl;
41 }
42 else if (bopArray[i].preference == 2)
43 {
44 cout << bopArray[i].bopname << endl;
45 }
46 }
47 }
48 void p6_4(void)
49 {
50 const struct bop bopArray[5] = { //给结构体变量初始化的方式
51 {"Wimp Macho", "YYY", "Y----", 0},
52 {"XXXXXXXX", "2XXXX", "3XXXXX", 1},
53 {"AAAAAAAA", "2AAAA", "3AAAAA", 2},
54 {"BBBBBBBB", "2BBBB", "3BBBBB", 0},
55 {"CCCCCCCC", "4CCCC", "3CCCCC", 1}
56 };
57 char choice = 0;
58
59 cout << "Benevolent Order of Proframers Report" << endl;
60 cout << left << setw(30) << "a. display by name" << "b. display by title" << endl;
61 cout << left << setw(30) << "c. display by bopname" << "d. display by preference" << endl;
62 cout << left << setw(30) << "q. quit" << endl;
63 cout << "Enter your choice:";
64
65 while (cin >> choice)
66 {
67 if (choice == 'q')
68 {
69 break;
70 }
71 switch (choice)
72 {
73 case 'a':
74 display_by_name(bopArray, 5);
75 break;
76
77 case 'b':
78 display_by_title(bopArray, 5);
79 break;
80
81 case 'c':
82 display_by_bopname(bopArray, 5);
83 break;
84
85 case 'd':
86 display_by_preference(bopArray, 5);
87 break;
88
89 default:
90 break;
91 }
92 cout << "Next choice:";
93 }
94 cout << "Bye!" << endl;
95 return;
96 }
