Why is my first set of numbers on the closed parenthesis stuck on 21?-CodePudding

I want the output to have the numbers on the first set to go from 0-20 and the second set to 0-100 but not 0,1,2,3,4,5 but 0,5,10 basically skipping each 5. Here's a screenshot of my code and output.

Code:

Output:

CodePudding user response：

A couple options for you...

Option 1:

For a As Integer = 0 To 20
    Dim b As Integer = a * 5
    Console.WriteLine("index number:({0}) = {1}", a, b)
Next

Option 2:

Dim b As Integer = 0
For a As Integer = 0 To 20
    Console.WriteLine("index number:({0}) = {1}", a, b)
    b = b   5
Next

Option 3:

Dim a As Integer = 0
Dim b As Integer = 0
While a <= 20
    Console.WriteLine("index number:({0}) = {1}", a, b)
    a = a   1
    b = b   5
End While

In C#, you could do:

for(int a=0,b=0; a<=20; a  ,b =5) {
  Console.WriteLine("index number:({0}) = {1}", a, b);
}