EJERCICIO N 01 REALICE UN PROGRAMA QUE IMPRIMA DEL 1 AL 20 USANDO DO WHILE LOOP Dim i, a, s, Integer i=1 Do While i< 20 i=i+1 TextBox2.Text = i Loop CODIFICACION Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim i As Integer i=0 Do While i <= 20 TextBox1.Text = i i=i+1 Loop End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click TextBox1.Text = " " End Sub Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click End End Sub End Class EJERCICIO 02 FACTORIAL DE UN NUMERO Dim i, n, al AsInteger n = TextBox1.Text i=1 al = 1 DoWhile i <= n al = al * i i=i+1 Loop TextBox2.Text = al EndSub TextBox1.Text = " " TextBox2.Text = " " End EJERCICIO N 03 INGRESAR N NUMEROS Y CUANTOS PARES EXISTEN PrivateSub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim a, b, i, n, c AsInteger i=0 a = TextBox1.Text c=0 DoWhile i <= a i=i+1 n = Val(TextBox2.Text) b = n Mod 2 If b = 0 Then c=c+1 EndIf Loop TextBox3.Text = c EndSub PrivateSub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click TextBox1.Text = "" TextBox2.Text = "" TextBox3.Text = "" EndSub EJERCICIO N 05 Suma de factorial PrivateSub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim i, n, j, sum, al AsInteger n = TextBox1.Text i=1 al = 1 sum = 0 j=1 DoWhile i <= n DoWhile j <= i al = al * j j=j+1 Loop sum = sum + al i=i+1 Loop TextBox2.Text = sum TextBox1.Text = " " TextBox2.Text = " " End