Here are some frequently asked questions about QBASIC:
QBasic evaluates a condition. If the condition proves true, the program runs the code block immediately following THEN . If false, it jumps to the ELSE block. Code Example qbasic programming for dummies pdf
This concise 25-page PDF is an excellent quick-start guide. It covers the essential rules of QBASIC, explains data types (constants and variables), and introduces the concepts of Direct Mode and Program Mode. It's like the "cheat sheet" you wish you had. Here are some frequently asked questions about QBASIC:
Note: STEP -1 tells the loop to count backward instead of forward. Code Example This concise 25-page PDF is an
If you have a menu with multiple branches, writing dozens of IF statements becomes messy. SELECT CASE simplifies multiple-choice logic.
' Question 1 INPUT "1. What does BASIC stand for? ", answer$ IF UCASE$(answer$) = "BEGINNER'S ALL-PURPOSE SYMBOLIC INSTRUCTION CODE" OR UCASE$(answer$) = "BEGINNER ALL-PURPOSE SYMBOLIC INSTRUCTION CODE" THEN PRINT "Correct! +1 point" score = score + 1 ELSE PRINT "Sorry, that's incorrect." END IF PRINT
In this script, line 10 clears the screen, line 20 prints the message, and line 30 stops the execution.