Question

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            abox.Text = "0";
            bbox.Text = "0";
            cbox.Text = "0";
            c.Text = "0";

        }

        private void calc_Click(object sender, EventArgs e)
        {// IF COS IS CHECKED
            if (p.Checked)

            {
                //Declaring Variables
                double a = Double.Parse(abox.Text);

                double b = Double.Parse(bbox.Text);

                double can = Double.Parse(cbox.Text);
                //Run the methods for answers
                double pAns = cos(a, b, can);
                //Output answers
                c.Text = string.Format("{0}", pAns);


            }
            // IF Law Of Cosines IS CHECKED
            if (sin.Checked)
            { //Declaring Variables
            double a = Double.Parse(abox.Text);

            double b = Double.Parse(bbox.Text);

            double can = Double.Parse(cbox.Text);

            //Run the methods for answers
            double sumA = LOCa(a, b, can);
                double sumB = LOCb(a, b, can);
                double answer = cos(a, b, can);
                //Output answers
                c.Text = string.Format("{0}", answer);
                AngA.Text = string.Format("{0}", sumA);
                AngB.Text = string.Format("{0}", sumB);
            }
        }//Method for plain Cosine
        static double cos(double a, double b, double can)
        { //COS math
           double sum = (a * a) + (b * b) - (2 * a * b * Math.Cos(can));
            //Square root it
            double answer = Math.Sqrt(sum);
            return answer;

        }//Law of cosine angle A
        static double LOCa(double a, double b, double can)
        {  //Sum = c
           double sum = (a * a) + (b * b);
            //Square root C
           double answer = Math.Sqrt(sum);
            //Law of cosines math
            double sumA = ((b * b) + (sum * sum) + (-1 * (a * a))) / (2 * b * sum);
            //Return the answer
            return sumA;


        }
        //Law of cosine angle B
        static double LOCb(double a, double b, double can)
        {
            double sum = (a * a) + (b * b);
            double answer = Math.Sqrt(sum);
            double sumB = ((a * a) - (b * b) + (sum * sum)) / (2 * b * sum);
            return sumB;


        }


    }
}

这将是一个程序，它计算三角形一边的长度，给定另外两边的长度和夹角的值。三角形不必是直角三角形。另外两种方法是使用余弦定律计算其他两个角度值的其他方法。我的所有方法都有相同的错误，表明“没有给出的参数对应于所需的形式参数”一个“方法”（double，double，double ......）而且我已经查看过这个问题的问题和回答但是对我来说，这些都不够基本（我在高中时的第一堂课程）。任何解决方案？

Answer 1

你不必写像

Double.Parse("ac.Text");

但

Double.Parse(ac.Text);

因为你必须传递这些控件的内容，而你传递字符串“ac.Text”而不是

和方法cos你没有传递任何参数，而你必须传递

cos(a,b, etc...

Answer 2

您的方法LOCa和LOCb包含参数：

static double LOCa(double a, double b, double sumA, double answer, double ac, double sumB, double sum)
{
}

static double LOCb(double a, double b, double sumA, double answer, double ac, double sumB, double sum)
{
}

但你没有打电话给他们：

        double sumA = LOCa();
        double sumB = LOCb();

您需要提供参数，以便编译器可以在您的代码中找到它们。目前没有合适的方法，这就是你得到错误的原因。

我看代码越多，就越错。大多数参数应该是在方法中声明的变量：

static double LOCa(double a, double b)
{
    //Sum = c
    double sum = (a * a) + (b * b);
    //Square root C
    double answer = Math.Sqrt(sum);
    //Law of cosines math
    double sumA = ((b * b) + (sum * sum) + (-1 * (a * a))) / (2 * b * sum);
    //Return the answer
    return sumA;
}

并且这样调用：

double sumA = LOCa(a, b);

与LOCb相同。

“没有给出的参数对应于”Form1.LOCa（double，double，double ......）所需的形式参数“a”

2 个答案: