c++编直方图、扇形统计图、条形统计图、折线统计图

下面给出简单的C++代码实现四种统计图。

1. 直方图

#include <iostream>
using namespace std;

int main() {
    int data[10];
    int max_value = 0;
    cout << "请输入10个数据：" << endl;
    for (int i = 0; i < 10; i++) {
        cin >> data[i];
        if (data[i] > max_value) {
            max_value = data[i];
        }
    }
    cout << endl;

    for (int i = max_value; i > 0; i--) {
        for (int j = 0; j < 10; j++) {
            if (data[j] >= i) {
                cout << "█ ";
            } else {
                cout << "  ";
            }
        }
        cout << endl;
    }

    for (int i = 0; i < 10; i++) {
        cout << i << " ";
    }
    cout << endl;

    return 0;
}

2. 扇形统计图

#include <iostream>
using namespace std;

int main() {
    int data[5];
    int total = 0;
    cout << "请输入5个数据：" << endl;
    for (int i = 0; i < 5; i++) {
        cin >> data[i];
        total += data[i];
    }
    cout << endl;

    for (int i = 0; i < 5; i++) {
        int angle = data[i] * 360 / total;
        cout << "数据" << i << "：" << string(angle, '*') << endl;
    }

    return 0;
}

3. 条形统计图

#include <iostream>
using namespace std;

int main() {
    int data[10];
    int max_value = 0;
    cout << "请输入10个数据：" << endl;
    for (int i = 0; i < 10; i++) {
        cin >> data[i];
        if (data[i] > max_value) {
            max_value = data[i];
        }
    }
    cout << endl;

    for (int i = max_value; i > 0; i--) {
        for (int j = 0; j < 10; j++) {
            if (data[j] >= i) {
                cout << "█ ";
            } else {
                cout << "  ";
            }
        }
        cout << endl;
    }

    for (int i = 0; i < 10; i++) {
        cout << i << " ";
    }
    cout << endl;

    return 0;
}

4. 折线统计图

#include <iostream>
using namespace std;

int main() {
    int data[10];
    cout << "请输入10个数据：" << endl;
    for (int i = 0; i < 10; i++) {
        cin >> data[i];
    }
    cout << endl;

    for (int i = 0; i < 10; i++) {
        cout << data[i] << " ";
        for (int j = 0; j < data[i]; j++) {
            cout << "*";
        }
        cout << endl;
    }

    return 0;
}

注意，这些实现都是比较简单的，只是为了说明实现思路，实际应用中可能需要更多的细节处理。