【導(dǎo)讀】Flash不僅能使學(xué)習(xí)者加深對所學(xué)知識的理解，提高學(xué)生的學(xué)習(xí)興趣和。為了為學(xué)生提供直觀的實(shí)驗(yàn)過程，提高學(xué)生的學(xué)習(xí)效率，F(xiàn)lash動畫在。教學(xué)中的應(yīng)用十分必要。本論文以制作蛋白質(zhì)透析動畫為例，闡述了利用擁有強(qiáng)。大能力和獨(dú)特的交互性的。用程序和其它允許用戶交互的內(nèi)容。Flash可以包含簡單的動畫、視頻內(nèi)容、復(fù)。雜演示文稿和應(yīng)用程序以及介于它們之間的任何內(nèi)容。通常，使用Flash創(chuàng)作。的各個內(nèi)容單元稱為應(yīng)用程序，即使它們可能只是很簡單的動畫。加圖片、聲音、視頻和特殊效果，構(gòu)建包含豐富媒體的Flash應(yīng)用程序。Flash特別適用于創(chuàng)建通過Inter提供的內(nèi)容，因?yàn)樗奈募浅Ｐ?。Flash是通過廣泛使用矢量圖形做到這一點(diǎn)的。庫面板是Flash顯示Flash文檔中的媒體元素列表的位置。完成Flash文檔的創(chuàng)作后，可以使用“文件”“發(fā)布”命令發(fā)布它。期間到達(dá)該關(guān)鍵幀時將執(zhí)行該腳本。幀腳本最常見的一種用法是在到達(dá)特定的關(guān)鍵幀后停止回放。用幀腳本來動態(tài)更新某個標(biāo)簽的值、管理舞臺上各元素的交互等等。

　　

【正文】 lips, buttons, and other symbols). However, if your ActionScript code is scattered over many keyframes and object instances, debugging your application will be much more difficult. It will also be impossible to share your code between different Flash applications. Therefore, it’ s important to follow best practices for coding when you create ActionScript in Flash. Rather than attaching your scripts to elements like keyframes, movie clips, and buttons, you should respond to events by calling functions that reside in a central location. One method is to attach embedded ActionScript to the first or second frame of the Timeline whenever possible so you don’ t have to search through the FLA file to find all your code. A mon practice is to create a layer called actions and place your ActionScript code there. When you attach all your scripts to individual elements, you’ re embedding all your code in the FLA file. If sharing your code between other Flash applications is important to you, use the Script window or your favorite text editor to create an external ActionScript (AS) file. By creating an external file, you make your code more modular and well anized. As your project grows, this convenience bees much more useful than you might imagine. An external file aids debugging and also source control management if you’ re working on a project with other developers. To use the ActionScript code contained in an external AS file, you create a script within the FLA file and then use the include statement to access the code you’ ve stored externally, as shown in the following example: include ../core/ You can also use ActionScript to create custom classes. You must store custom classes in external AS files and use import statements in a script to get the classes exported into the SWF file, instead of using include statements. You can also use ponents to share code and functionality. About writing scripts to handle events Events can be categorized into two major groups: those that occur on the Timeline (in keyframes) and those that occur on object instances (move clips, buttons, and other symbols). The interactivity of your Flash movie or application can be scattered over the many elements in your project, and you may be tempted to add scripts directly to these elements. However, Macromedia remends that you do not add scripts directly to these elements (keyframes and objects). Instead, you should respond to events by calling functions that reside in a central location. Using the Actions panel and Script window To create scripts that are part of your document, you enter ActionScript directly into the Actions panel. To create external scripts, you can use the Script window (File New ActionScript File) or your preferred text editor. When you use the Actions panel or Script window, you are using the ActionScript editor. Both the Actions panel and Script window have the Script pane (which is where you use the ActionScript editor) and the Actions toolbox. However, the Actions panel, and the Flash authoring environment in general, offer a few more codeassistance features than the Script window. Flash offers these features in the Actions panel because they are especially useful in the context of editing ActionScript within a FLA file.