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main.cpp

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+#include <iostream>
+#include <fstream>
+#include <vector>
+
+using namespace std;
+
+void InputStudentInfo(vector<pair<string, double>> &students) {
+    string name, gender;
+    double score;
+    cout << "该系统只支持百分制成绩的平均分计算"<<endl;
+    cout << "请输入学生的姓名、性别和分数（输入'end'结束输入）: ";
+    while (cin >> name >> gender >> score) {
+        if (name != "end") {
+            students.push_back(make_pair(name, score));
+        } else {
+            break;
+        }
+        cout << "请继续输入学生的姓名、性别和分数（输入'end'结束输入）: ";
+    }
+}
+
+void CalculateAverageScore(const vector<pair<string, double>> &students, vector<double> &averages) {
+    for (const auto &student : students) {
+        if (student.second >= 60) {
+            // 假定性别为'm'表示男性，'f'表示女性
+            if (student.first[0] == 'm') {
+                averages[0] += student.second;
+                averages[1]++;
+            } else if (student.first[0] == 'f') {
+                averages[2] += student.second;
+                averages[3]++;
+            } else {
+                cout << "未知性别，跳过该学生。" << endl;
+            }
+        } else {
+            cout << "分数低于60分，跳过该学生。" << endl;
+        }
+    }
+}
+
+void OutputAverageScore(const vector<double> &averages) {
+    cout << "男性学生的平均分数为: " << averages[0] / averages[1] << endl;
+    cout << "女性学生的平均分数为: " << averages[2] / averages[3] << endl;
+}
+
+void SaveToFile(const vector<double> &averages, const string &filename) {
+    ofstream outfile(filename);
+    outfile << "男性学生的平均分数为: " << averages[0] / averages[1] << endl;
+    outfile << "女性学生的平均分数为: " << averages[2] / averages[3] << endl;
+    outfile.close();
+}
+
+int main() {
+    vector<pair<string, double>> students;
+    vector<double> averages(4, 0); // 分别为男性平均分、男性人数、女性平均分、女性人数
+
+    InputStudentInfo(students);
+    CalculateAverageScore(students, averages);
+    OutputAverageScore(averages);
+    SaveToFile(averages, "student_stats.txt");
+
+    return 0;
+}