C++ 结构体+数组+取随机数 案例（打印3名老师 带着 5名学生）结构体

 1 //结构体案列
 2
 3 #include<iostream>
 4 #include<string>
 5 #include<ctime>
 6 using namespace std;
 7
 8 //学生的结构体
 9 struct Student
10 {
11     string sName;
12     int score;
13 };
14
15 //老师的结构体
16 struct  Teacher
17 {
18     string tName;
19     struct Student sArray[5];
20
21 };
22 //给老师和学生赋值
23 void allocateSpace(struct Teacher tArray[],int len)
24 {
25     string nameSeed = "ABCDE";
26     for (int i = 0; i < len; i++)
27     {
28
29         tArray[i].tName = "Teacher_";
30         tArray[i].tName += nameSeed[i];
31         for (int j = 0; j < 5; j++)
32         {
33             tArray[i].sArray[j].sName = "Student_";
34             tArray[i].sArray[j].sName += nameSeed[j];
35
36             int random = rand() % 60 + 40;
37             tArray[i].sArray[j].score = random;
38
39
40         }
41
42
43     }
44 }
45
46 //打印信息
47 void printfInfo(struct Teacher tArray[], int len)
48 {
49     for (int i = 0; i < len; i++)
50     {
51         cout << "老师的姓名： " << tArray[i].tName << endl;
52
53         for (int j = 0; j < 5; j++)
54         {
55
56             cout << "\t学生的姓名： " << tArray[i].sArray[j].sName <<" 考试分数： "<<tArray[i].sArray[j].score<< endl;
57         }
58     }
59 }
60
61
62
63 int main()
64 {
65     //随机数种子
66     srand((unsigned int )time(NULL));
67
68     //创建3名老师的数组
69     struct Teacher tArray[3];
70
71     //赋值
72     int len = sizeof(tArray) / sizeof(tArray[0]);
73     allocateSpace(tArray, len);
74     //打印
75
76     printfInfo(tArray, len);
77
78 }