我不明白为什么我的斐波那契数列不起作用

Question

我必须编写一个小程序来计算斐波那契数列的某个迭代。现在，无论我做什么，它总是给出 2...

public partial class Form1 : Form
       {
        int num1=0;
        int num2=1;
        int sum=0;

        public Form1()
        {
            InitializeComponent();
        }

        private void btnCal_Click(object sender, EventArgs e)
        {
            for (int z = 0; z <= Convert.ToInt32(txtCal.Text); z++)
            {        
                sum = num1 + num2;

                lblErg.Text = Convert.ToString(sum);
                num1 = num2;
                sum = num1;
            }
        }

Answer 1

您将 num1 设置为求和而不是求和到 num2。

            sum = num1 + num2;
            num1 = num2;
            num2 = sum;

            lblErg.Text = Convert.ToString(sum);

我不明白为什么我的斐波那契数列不起作用

I can't figure out why my fibonacci sequence isn't working

c#

fibonacci