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  • 自考新教材-p352_3(2)

    源程序:用面向对象方法又做一遍

    #include <iostream>
    #define N 10
    using namespace std;

    template <typename T>

    class sum_array
    {
    private:
    T a[N];
    public:
    sum_array(T a1[])
    {
    for (int i = 0; i < N; i++)
    a[i] = a1[i];
    }
    T cal_sum(T a[], int n)
    {
    int i, size;
    T sum = 0;
    cout << "您想求数组前几项的和,请输入:";
    cin >> size;
    for (i = 0; i < size; i++)
    {
    sum = sum + a[i];
    }
    return sum;
    }
    };


    int main()
    {

    int num[N] = {1,3,5,7,9,2,4,6,8,0};
    sum_array <int>suma(num);
    int result = suma.cal_sum(num,N);
    cout << result << endl;

    cout << endl;


    double num1[N] = { 1.1,3.3,5.5,7.7,9.9,2.2,4.4,6.6,8.8,0.0 };
    sum_array <double>suma1(num1);
    double result1 = suma1.cal_sum(num1, N);
    cout << result1 << endl;

    cout << endl;
    /*
    char num2[N] = { 'a','c','e','f','h','m','p','b','j','d' };
    int result2 = sum_array(num2, N);
    cout << result2 << endl;
    */
    system("pause");
    return 1;
    }

    运行结果:

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  • 原文地址:https://www.cnblogs.com/duanqibo/p/12267733.html
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