الملفات

الموضوع باللغة الإنجليزية عن الملفات ومعلومات بسيطة ومفيدة:

There are three main ways to access files in Visual Basic:

Sequential File Access

Random File Access

Binary File Access

Sequential File Access

Sequential files are like tape cassettes you read data from them in a sequential manner. If you want data at the end of the file, you have to read all the intervening data first. Sequential files are often organized into text strings in Visual Basic

Random Access Files

If sequential files are like cassettes, random access files are more like CDs. Random files are organized into records, and you can read a particular record without having to read all the intervening data you can move to that record in a file directly, just as you can move to a CD track.

Binary Files

Binary files are simply unformatted binary data, and Visual Basic does not interpret (such as looking for text strings) or organize the contents (into records) of such files at all. These files are just bytes to Visual Basic, Binary files include EXE files, graphics files, and so on.