【導(dǎo)讀】于VB方面的問題，也正是本設(shè)計的開發(fā)工具之一。VisualBasic能讓你寫、編輯，并且測試Windows應(yīng)用程序。另外，VB有包括你能用來寫并且編譯幫助文件那的工具，你裝載并且執(zhí)行VB系統(tǒng)就好象你做其。程序時術(shù)語應(yīng)用程序似乎最適合，因為一個Windows程序由若干份代表性的文件組成。這些文件以工程形式一起工作。動菜單用戶從Windows加載并且運行工程產(chǎn)生最終的程序。如VisualBasic，一些年以前與程序語言的非常不一致。言，VisualBasic讓你產(chǎn)生與今天的Windows操作系統(tǒng)的每個方面互相影響的應(yīng)用程序。如果在過去你已經(jīng)注意VisualBasic，你將很驚訝今天的VisualBasic系統(tǒng)。創(chuàng)造獨立的運行時刻的一個真實的編輯器.EXE文件比先前的VB程序更快速執(zhí)行。VB的程序語言是相當簡單的并且在最多的部分使用普通的英語詞和短語。話框，當你開始VisualBasic時VisualBasic將不顯示開的對話框。數(shù)字表演VisualBasic開發(fā)環(huán)境，你將快變得密切地熟悉的環(huán)境。在VB的環(huán)境以內(nèi)你將更舒適并且當在發(fā)展環(huán)境隨后涉及的窗口和工具時。將更好的理解一些聯(lián)系的詞。

　　

【正文】 the same application. An application that requires only a single data window is called an SDI (singledocument interface) application, such as the Windows Notepad application that lets the user open only one data document at a time. SDI applications might support multiple forms。 however, these forms do not hold multiple data files but only provide extended support for extra dialog boxes and secondary work screens. Source program is code, forms, menus, graphics, and help files that you create and edit to form the project (also called source code). The parts of the application that you create, such as the forms, the code, and the graphics that you prepare for output, prise the source program. When you or another user piles or runs the source program, VB translates the program into an executable program. You cannot make changes directly to an executable program. If you see bugs when you run the program, you must change the source application (which might contain multiple files in the project) and rerun or repile the source. The Toolbox Supplies Controls The toolbox contains the controls that you place on the Form window. You will learn in the next hour39。s lesson how to place toolbox controls on the Form window. The toolbox never runs out of controls。 if you place a mand button on the Form window, another awaits you on the toolbox, ready to be placed are called the intrinsic controls because all three editions of VB support these standard tools. You can add additional controls to the toolbox as your needs grow. Some extra tools e with all three editions of VB, but these extra tools do not appear on the Toolbox window until you add them through the Project|Components menu option. If you use the Professional or Enterprise Editions, you will be able to add extra controls that don39。t appear in the Standard Edition39。s collection of intrinsic and extra controls. The Form Layout Window Places Forms The Form Layout window displays the initial position and relative size of the current form shown in the Form application being studied is a multipleform application. The form with the title Text Box Properties is just one of several forms. The Form Layout window always shows where the form appears in the current Form window. If you want the form to appear at a different location from the current position, you can move the form inside the Form Layout window to move the form39。s appearing position when the user runs the application. TIP: Notice that the form location indicators, to the right of the toolbar buttons, change when you move the form in the Form Layout window. The Project Explorer Window The Project Explorer window, often called the Project window, gives you a treestructured view of all the files in the application. Microsoft changed the formal name from Project window to Project Explorer window between versions 4 and 5 to celebrate the resemblance of the window to the typical Explorerlike treestructured file views so prevalent in Windows 95 and NT. You can expand and collapse branches of the view to get more or less detail. The Properties Window Properties are detailed descriptive information about a control. A different list appears in the Properties window every time you click over a different Form window tool. The Properties window describes properties (descriptive and functional information) about the form and its controls. Many properties exist for almost every object in Visual Basic. Help Is at Your Fingertips Books Online are electronic books about Visual Basic for the Visual Basic programmer. Visual Basic39。s online help system is one of the most advanced on the market. When you want help with a control, window, tool, or mand, press F1. Visual Basic analyzes what you are doing and offers help. In addition, Visual Basic supports a tremendous help resource called Books Online. When you select Books Online from the Help menu, Visual Basic displays a treestructured view of books about Visual Basic that you can search and read. The online help extends to the Inter as well. If you have an Inter connection, you can browse the latest help topics by selecting Help|Microsoft on the Web. Summary This hour quickly introduced you to Visual Basic. Perhaps you already can see that Visual Basic is more than it first appears. Programmers use Visual Basic to create extremely advanced Windows applications. Now that you understand VB39。s purpose and how to start and stop VB, you39。re ready to jump right in.