Its just like most other languages that are compiled you first need to work with an editor tool(ideally one that is capable of compiling the script) - for example the flex editor or any Adobe Flash Editor CS3 and up will enable you to code in actionscript 3.0
by the way if you want a jump start check out my site it has over 5 hours of free (and after that if your still around there is a monthly fee to see it all). There is over 17 hours of content targeted as building blocks to expand your skills in programing from 0 to really knowing all the basic foundations.
Adobe Flash uses actionscript. It is the main programming language for flash.
Adobe Flash CS4 does support Actionscript 1.0. The Actionscript 2.0 virtual machine fully supports Actionscript 1.0 code. Simply choose the Actionscript 2.0 file format, and code any Actionscript 1.0 code you wish.
You have to know actionscript. Go to Newgrounds.com for some actionscript tutorials.
No, it is not possible to put Actionscript 2.0 code in an Actionscript 3.0 code file. The Actionscript virtual machine that runs Actionscript 3.0 code is completely different from the Actionscript 1.0 and 2.0 virtual machine. The only way to include Actionscript 2.0 code in an Actionscript 3.0 project would be to have the Actionscript 3.0 Flash file load an external Actionscript 2.0 Flash file.
Adobe Flash and Adobe Flex both come with Actionscript compilers built in. There are also some stand-alone Actionscript compilers. MTASC is a command-line compiler that can compile Actionscript 2.0 class files. SWFTOOLS also has Actionscript compilers similar to MTASC for Actionscript 2.0 and Actionscript 3.0. There are also some third-party Flash development software programs that support Actionscript compiling.
Flash, then Macromedia Flash (now Adobe Flash), was introduced in 1996. Macromedia purchased FutureSplash Animator, then re-branded it as Macromedia Flash. While some actions were introduced in Flash 2, Actionscript was not introduced until Flash player 5.
ActionScript
actionscript 2
To create games with Macromedia Flash 8 you need to learn actionscript. Actionscript is a programming language that resembles Java and it is used to control objects (mostly movie clips). To learn how to write actionscript you can perform a search for "flash game tutorials" or just "actionscript 2 tutorial" to find out more about actionscript. Flash 8 uses actionscript 2, so make sure the tutorials you find are using the appropriate version of actionscript. Once you get the hang of it you can make your own games. Start with something simple, and work your way up to more demanding projects. If you get stuck and don't know how to write code to do what you want to happen, you can always look it up. E.g. search for"click and drag actionscript 2" and you will probably find many different code examples that do just that. Also the Flash 8 program has extensive help documents with information on how to learn actionscript as well as a library with all the possible data types and their methods. I myself am still making my own basic games but you can basically learn everything there is to know using the Internet.
authorization
You can add actionscript in different places, for example you can add actionscript to a frame or to an instance of an object. To add actionscript to a frame, select the frame and press F9.
Flash MX uses ActionScript for its language. It controls the movies and the items inside the movies. ActionScript is similar to JavaScript, if you are familiar with JavaScript.