这里的问题是,emptyRow和emptyCol变量在某种程度上并不倾向于工作,并且始终等于0,即使我在初始化时实际为它们赋值! 同样,你看到我在这里可能犯的错误吗?C#数独求解器变量故障
下面的代码:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
// Declaration of Fields, used to conjoin methods
RichTextBox[,] Grid = new RichTextBox[9, 9];
int emptyRow, emptyCol;
private void Form1_Load(object sender, EventArgs e)
{
// Creating a grid of Textboxes, for further use in a solving algorithm
// and setting alignment to center for all boxes
int i = 0;
for (int row = 0; row < 9; row++)
{
for (int col = 0; col < 9; col++)
{
i++;
Control[] foundControls = this.Controls.Find("Grid" + i.ToString(), false);
foreach (Control currentControl in foundControls)
{
if (currentControl.GetType() == typeof(RichTextBox))
{
RichTextBox currentRichTextBox = (RichTextBox)currentControl;
Grid[row, col] = currentRichTextBox;
currentRichTextBox.SelectionAlignment = HorizontalAlignment.Center;
}
}
}
}
}
bool SolveSudoku()
{
FindUnassignedLocation();
for (int num = 1; num <= 9; num++)
{
if (NoConflicts(emptyRow, emptyCol, num))
{
Grid[emptyRow, emptyCol].Text = num.ToString();
return true;
}
}
return false;
}
// Method to determine wether any fields are empty and if so, returning the first found
bool FindUnassignedLocation()
{
for (int row = 0; row < 9; row++)
{
for (int col = 0; col < 9; col++)
{
if (Grid[row, col].Text == "")
{
emptyRow = row;
emptyCol = col;
return true;
}
}
}
return false;
}
// Check if there are any conflicts in row or col or box
bool NoConflicts(int row, int col, int num)
{
return !UsedInRow(row, num) && !UsedInCol(col, num) &&
!UsedInBox(row - row % 3, col - col % 3, num);
}
// Check if there are any conflicts in row
bool UsedInRow(int row, int num)
{
for (int col = 0; col < 9; col++)
{
if (Grid[row, col].Text == num.ToString())
{
return true;
}
}
return false;
}
// Check if there are any conflicts in column
bool UsedInCol(int col, int num)
{
for (int row = 0; row < 9; row++)
{
if (Grid[row, col].Text == num.ToString())
{
return true;
}
}
return false;
// Check if there are any conflicts in box
}
bool UsedInBox(int boxStartRow, int boxStartCol, int num)
{
for (int row = 0; row < 3; row++)
{
for (int col = 0; col < 3; col++)
{
if (Grid[row + boxStartRow, col + boxStartCol].Text == num.ToString())
{
return true;
}
}
}
return false;
}
private void button1_Click(object sender, EventArgs e)
{
SolveSudoku();
}
}
}
StackOverflow不是用于调试您的错误代码的服务。你应该做的是:用手写出**你认为你的程序应该采取的所有步骤来处理一个不起作用的简单*案例。然后在调试器中按照上述步骤进行操作。当你手写的清单与观察到的行为不符时,这就是错误所在。 –
埃里克的建议在这里绝对是重点,特别是对于这种性质的程序,它自然适合分解为更小,可管理的逻辑块。按照建议进行操作将有助于您的程序结构,一旦您的预期行为在您的脑海中清晰可见,您的错误就会显现出来。 – Chris
所以在发布之前我做了很多次,但是还是不能理解为什么我的两个全局变量emptyRow和emptyCol没有分配值,但保持不变。 – Kamilczak020