QBasic Tutorial 11 - For Loop - QB64


There are three main types of loops for QBasic. The loops are the While, Do Loop, and For loop. This tutorial will show the For loop.

Warning
Make sure that the loop has a condition that will end the loop. If there is not a condition to end the loop, the computer will be sent through an infinite loop. Sometimes, using CTRL BREAK (QBasic 1.1) can end the infinite loop.

For Loop Syntax
FOR counter = start TO end [STEP]
  [Statement Block]
NEXT counter

Code Download
QBT11_1.BAS
QBT11_2.BAS
QBT11_3.BAS
QBT11_4.BAS
QBT11_5.BAS
QBT11_6.BAS



QBasic / QB64 Links

QB64 is a free download at www.qb64.com

QB64 Wiki & Manual is found at qb64.com/wiki.html

QBasic 1.1 comes with OldDOS. A zip file of OldDOS can be found at www.pcxt-micro.com/download.html

QBasic 1.1 needs DOSBox to run on Windows Vista and greater, Mac, and Linux.
DosBox is a free download at www.dosbox.com

Free QB64/QBasic Code

QBasic.Net - www.qbasic.net

Pete's QBasic Site - www.petesqbsite.com/index.php

QB45 - qb45.org

Phatcode - games.phatcode.net