53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
// 设计一个学生类，包括学号、姓名、成绩，并设计接口函数用来输出这些学生数据并计算平均分。并编写main函数进行测试：
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// 输出如：
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// 学号 姓名 成绩 1 张XX 98 2 王XX 90 3 XXX 89 平均成绩： XX
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#include <iostream>
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#include <cstring>
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#include <cstdlib>
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#include <iomanip>
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using namespace std;
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class Student
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{
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private:
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int sid;
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string name;
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float score;
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public:
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Student(int sid, const string &name, float score) : sid(sid), name(name), score(score)
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{
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}
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~Student() {}
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public:
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static void avgAndShow(Student *stus, int n);
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};
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void Student::avgAndShow(Student *stus, int n)
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{
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float avg = 0.0f;
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cout << "学号\t"
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<< "姓名\t"
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<< "成绩" << endl;
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for (int i = 0; i < n; i++)
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{
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cout << stus[i].sid << "\t" << stus[i].name << "\t" << stus[i].score << endl;
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avg += stus[i].score / n;
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}
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cout << "平均成绩: " << setprecision(3) << avg << endl;
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}
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int main()
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{
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Student *stus = new Student[3]{
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Student(1, "张XX", 98),
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Student(2, "王XX", 90),
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Student(3, "XXX", 89)};
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Student::avgAndShow(stus, 3);
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return 0;
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}
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