static void Main(string[] args)
{
while (true)
{
Console.WriteLine("请输入要进入的磁盘:");
string path = Console.ReadLine();
Console.WriteLine("请输入要打开的文件路径:");
string fileName = Console.ReadLine();
FileFather ff = GetExtention(fileName, path + fileName);
ff.OpenFile();
}
}
//根据扩展名去建立对应的文件对象，并且返回一个父类对象
public static FileFather GetExtention(string fileName, string fullPath)
{
FileFather ff = null;
string fileType = Path.GetExtension(fileName);
switch (fileType)
{
case ".txt": ff = new TxtClass(fullPath);
break;
case ".wmv": ff = new WmvClass(fullPath);
break;
case ".jpg": ff = new JpgClass(fullPath);
break;
}
return(ff);
}