Writing a simple dialog with VC

jackyshow

Create two buttons and two ListBox data display boxes on the dialog box.
One is to read the data from the excel table and display the contents of the excel table in a ListBox. The other button is to read the data from the excel table to implement the calculation of least squares and put the result in another ListBox Display.
Because I'm using the MFC framework in Visual C ++ for the first time, I don't understand a lot of things, and I read a lot of articles on the Internet, but I always make mistakes. Which teacher would like to help.
The calculation procedure is better for me.
#include <stdio.h>
#include <math.h>
#define N 1000000
#define H 100
#define E 0.0001
float A [H] [H];
float _A [H] [H];
float x [H];
float x0 [H];
float A_A [H] [H];
float b [H];
float B [H];
int n;
int m;

float Sumax (int n, int i, float x0 [])
{
  int j;
  float result;
  result = 0;
  for (j = 0; j <n; j ++)
  result + = A_A [i] [j] * x0 [j];
  return result;
}
float Maxof (float x [], float x0 [], int n)
{
  int i;
  float result;
  result = 0;
  for (i = 0; i <n; i ++)
  {
if (result <fabs (x [i] -x0 [i]))
result = fabs (x [i] -x0 [i]);
  }
  return result;
}
void Jacobiagrithm (float b [], int n, float x [], float e)
{
int i, k;

float R;
    for (i = 0; i <n; i ++)
x0 [i] = 0;
for (k = 1; k <= N; k ++)
{
for (i = 0; i <n; i ++)
x [i] = x0 [i] + (b [i] -Sumax (n, i, x0)) / A_A [i] [i];
        R = Maxof (x, x0, n);
        if (R <= e) return;
for (i = 0; i <n; i ++)
x0 [i] = x [i];
}

}
void Init ()
{
   int i, j;
float sum;
   scanf ("% d",&m);
   scanf ("% d",&n);
   for (i = 0; i <m; i ++)
for (int j = 0; j <n; j ++)
scanf ("% f",&A [i] [j]);
   for (i = 0; i <m; i ++)
scanf ("% f",&b [i]);
  // for (i = 0; i <m; i ++)
  // A [i] [j] = 1;
   for (i = 0; i <n; i ++)
for (j = 0; j <m; j ++)
_A [i] [j] = A [j] [i];
   for (i = 0; i <m; i ++)
for (j = 0; j <m; j ++)
{
         sum = 0;
for (int k = 0; k <m; k ++)
if (m> = n)
sum + = _ A [i] [k] * A [k] [j];
else
             sum + = A [k] [j] * _ A [i] [k];
A_A [i] [j] = sum;
}
    for (i = 0; i <m; i ++)
{
sum = 0;
for (int k = 0; k <m; k ++)
if (m> = n)
sum + = _ A [i] [k] * b [k];
else
       sum + = b [k] * _ A [i] [k];
B [i] = sum;
}
   Jacobiagrithm (B, n, x, E);
   for (i = 0; i <n; i ++)
printf ("% f", x [i]);
}
void main ()
{
Init ();

}

zhoudaj

The main function is not possible in MFC

jackyshow

The following program can be run independently.
I don't know how to decompose it and embed it under the Button command of the MFC dialog box, I hope the teacher will give it all.

l4331530

With MFC

l4331530

Use MFC to add two buttons and two listboxes, and then add the corresponding functions to the corresponding button events. Only one of them reads data from the file and displays it in the listbox. The following is to write data to the file. Search the Internet and read data from the file.
CString strValue;
strValue = "select xx from table ";
CStdioFile f;
if (f.Open( "g:\\a.doc" ,CFile::modeCreate|CFile::modeWrite)))
{
   f.WriteString( strValue );
   f.Close();
}