Читать книгу Beginning Programming All-in-One For Dummies - Wallace Wang - Страница 76

If you wanted to create your own program, you could write everything from scratch. So, if you wanted to include features of a spreadsheet and a database, you would have to create your own spreadsheet and database.

Obviously this would be difficult to do, so by using scripting languages within existing programs, you can create custom programs that rely on the features of an existing program like Microsoft Excel.

Now instead of writing a spreadsheet from scratch, you can use the features of the Excel spreadsheet and create a custom program based on Excel. This lets you reuse proven features of an existing program while letting you focus solely on writing the features you need.

Stand-alone programs, based on existing programs, can simply make that existing program much easier to use. For example, Microsoft Excel is a powerful spreadsheet that many people don’t know how to use. By creating a stand-alone program based on Excel, your stand-alone program can gently guide users into solving problems without forcing them to learn Excel.