File System Processing (2) -- file processing function statements and file system controls

 

Function Name	Function	Statement name	Function
Lof	Length of the returned file number	Seek	Specify the next read/write location of the file
Loc	Returns the read/write location represented by the file number.	Kill	Delete an object
EOF	Test the current read/write location and file pointer of the function. Whether the file number is located at the end of the file.	Filecopy	Copy a file
Filelen	The length of the returned file, in bytes.	Name	Rename a file
Freefile	Obtain the first one of the unoccupied file numbers.	Chdrive	Change current drive
Seek	Returns the current read/write location of the file specified by the file number.	Chdir	Change current folder
Shell	Run the string parameter "pathname" to specify Executable files	Mkdir	Create a new folder
Curdir	Returns a string indicating the specified drive. Current path	Rmdir	Deletes a specified directory or folder.
Dir	Returns a file name, directory name, or Folder name string

File System Controls	Attribute	Event
DriveListBox (driver list box Control)	Drive: determines the drive list The top name in the box is displayed.	Change Click
DirListBox (directory list box Control)	Path: indicates the current directory. Listindex: the property value of the subdirectory. Eg: First subdirectory listindex The property value is 0. Listcount: Number of subdirectories List: A string array containing Complete path and directory name for each directory	Change Click
FileListBox (file list box Control)	Path: Specifies the file to be displayed. Directory or folder Path Name Pattern: Specifies File Type displayed Filename: returns the file list box. File Name string selected in

This is also linked with the internal functions in Chapter 2 and the VB controls in Chapter 4. There are many similarities in usage and knowledge types, which can be analogous to learning, you can also take this part to the front and learn, but the problem solved is different!