public class Program
{
private static void Main(string[] args)
{
var demo = new EventSimpleDemo();
string name = "Yin";
demo.ExcutingFun += Hello;
demo.SayHi();
}
public static void Hello(string name, EventArgs e)
{
Console.WriteLine(name + " hello");
}
public static partial class StringDistance
{
public static int GetDamerauLevenshteinDistance(string source, string target)
{
var bounds = new { Height = source.Length + 1, Width = target.Length + 1 };
int[,] matrix = new int[bounds.Height, bounds.Width];
for (int height = 0; height < bounds.Height; height++) { matrix[height, 0] = height; };
for (int width = 0; width < bounds.Width; width++) { matrix[0, width] = width; };
for (int height = 1; height < bounds.Height; height++)
{
for (int width = 1; width < bounds.Width; width++)
{
int cost = (source[height - 1] == target[width - 1]) ? 0 : 1;
int insertion = matrix[height, width - 1] + 1;
int deletion = matrix[height - 1, width] + 1;
int substitution = matrix[height - 1, width - 1] + cost;
int distance = Math.Min(insertion, Math.Min(deletion, substitution));
if (height > 1 && width > 1 && source[height - 1] == target[width - 2] && source[height - 2] == target[width - 1])
{
distance = Math.Min(distance, matrix[height - 2, width - 2] + cost);
}
matrix[height, width] = distance;
}
}
var result = matrix[bounds.Height - 1, bounds.Width - 1];
return result;
}
}
}
public class EventSimpleDemo
{
public void SayHi()
{
var name = "Yin";
ExcutingFun(name, new EventArgs());
}
public event SayHello ExcutingFun;
public delegate void SayHello(string name, EventArgs e);
}
{
private static void Main(string[] args)
{
var demo = new EventSimpleDemo();
string name = "Yin";
demo.ExcutingFun += Hello;
demo.SayHi();
}
public static void Hello(string name, EventArgs e)
{
Console.WriteLine(name + " hello");
}
public static partial class StringDistance
{
public static int GetDamerauLevenshteinDistance(string source, string target)
{
var bounds = new { Height = source.Length + 1, Width = target.Length + 1 };
int[,] matrix = new int[bounds.Height, bounds.Width];
for (int height = 0; height < bounds.Height; height++) { matrix[height, 0] = height; };
for (int width = 0; width < bounds.Width; width++) { matrix[0, width] = width; };
for (int height = 1; height < bounds.Height; height++)
{
for (int width = 1; width < bounds.Width; width++)
{
int cost = (source[height - 1] == target[width - 1]) ? 0 : 1;
int insertion = matrix[height, width - 1] + 1;
int deletion = matrix[height - 1, width] + 1;
int substitution = matrix[height - 1, width - 1] + cost;
int distance = Math.Min(insertion, Math.Min(deletion, substitution));
if (height > 1 && width > 1 && source[height - 1] == target[width - 2] && source[height - 2] == target[width - 1])
{
distance = Math.Min(distance, matrix[height - 2, width - 2] + cost);
}
matrix[height, width] = distance;
}
}
var result = matrix[bounds.Height - 1, bounds.Width - 1];
return result;
}
}
}
public class EventSimpleDemo
{
public void SayHi()
{
var name = "Yin";
ExcutingFun(name, new EventArgs());
}
public event SayHello ExcutingFun;
public delegate void SayHello(string name, EventArgs e);
}