. NET Learning notes----2015-07-21 (C # Basic Review 03, simple factory and abstract class)

        Static void Main (string[] args)        {            // use process to open the specified file            new ProcessStartInfo (@ "C:\Users\Administrator\Desktop\Adobe Registration machine instructions for use of. txt");             New Process ();             = psi;            P.start ();        }

Will repeat with the previous notes, but review it again, last time not too clear

Analog Console Open File: (Review object oriented)

1. Prompt the user to enter the disk path in the console

D:\

2. Prompt the user to enter the name of the file to be opened

1.txt

So we get the D:\1.txt. This is the full path to the file.

Parent class:

     Public Abstract classFilefather { Public stringFileName {Get; Set; }         PublicFilefather (stringfileName) {             This. FileName =FileName; }         Public Abstract voidOpenFile (); }}

Txtpath sub-class:

 class   Txtpath:filefather { public  Txtpath (string   FileName):  base   public< /span> override   OpenFile () {ProcessStartInfo psi  = new  ProcessStartInfo ( Span style= "color: #0000ff;" >this  .            FileName);            Process P  = new   Process ();            P.startinfo  = PSI;        P.start (); }    }

Jpgpath sub-class:

 class   Jpgpath:filefather { public  Jpgpath (string   FileName):  base   public< /span> override   OpenFile () {ProcessStartInfo psi  = new  ProcessStartInfo ( Span style= "color: #0000ff;" >this  .            FileName);            Process P  = new   Process ();            P.startinfo  = PSI;        P.start (); }    }

Wmvpath sub-class:

 class   Wmvpath:filefather { public  Wmvpath (string   FileName):  base   public< /span> override   OpenFile () {ProcessStartInfo psi  = new  ProcessStartInfo ( Span style= "color: #0000ff;" >this  .            FileName);            Process P  = new   Process ();            P.startinfo  = PSI;        P.start (); }    }

Program Entry:

        Static voidMain (string[] args) {            //using a process to open a specified file//ProcessStartInfo psi = new ProcessStartInfo (@ "C:\Users\Administrator\Desktop\Adobe Registration machine instructions for use of. txt"); //process P = new process (); //p.startinfo = psi; //P.start ();Console.WriteLine ("Please select a disk to enter"); stringPath =Console.ReadLine (); Console.WriteLine ("Please select a file to open"); stringFileName =Console.ReadLine (); //file Full path = path + FileNameFilefather FF= GetFile (Filename,path +fileName); Ff.            OpenFile ();        Console.readkey (); }         Public StaticFilefather GetFile (stringFileName,stringFullPath) {            stringExtension =path.getextension (fileName); Filefather FF=NULL; Switch(extension) { Case ". txt": FF =NewTxtpath (FullPath);  Break;  Case ". jpg": FF =NewJpgpath (FullPath);  Break;  Case ". wmv": FF =NewWmvpath (FullPath);  Break; }            returnFF; }

Code redundancy, mainly for practicing abstract classes and abstract methods

. NET Learning notes----2015-07-21 (C # Basic Review 03, simple factory and abstract class)