using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Triangulo_XIX_Forms
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
int n = 1;
char r, c, ch;
private void textBox2_TextChanged(object sender, EventArgs e)
{
ch = Convert.ToChar(textBox2.Text);
}
private void button2_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void button1_Click(object sender, EventArgs e)
{
if (ch >= 'a' && ch <= 'z')
{
ch = (char)(ch - 32);
}
for (r = 'A'; r <= ch; r++, n++)
{
for (c = 'A'; c <= ch - n + 1; c++)
{
textBox1.Text += (c.ToString());
}
textBox1.Text += "\r\n";
}
}
}
}
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