using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace _02打开文件练习
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("请输入要打开的文件所在的路径");
string filePath = Console.ReadLine();
Console.WriteLine("请输入要打开的文件的名字");
string fileName = Console.ReadLine();
//通过简单工厂设计模式返回父类
BaseFile bf = GetFile(filePath, fileName);
if (bf != null)
{
bf.OpenFile();
}
Console.ReadKey();
}
static BaseFile GetFile(string filePath,string fileName)
{
BaseFile bf = null;
string strExtension = Path.GetExtension(fileName);//3.txt
switch (strExtension)
{
case ".txt":
bf = new TxtFile(filePath, fileName);
break;
case ".avi":
bf = new AviFile(filePath, fileName);
break;
case ".mp4":
bf = new MP4File(filePath, fileName);
break;
}
return bf;
}
}
class BaseFile
{
//字段、属性、构造函数、函数、索引器
private string _filePath;
public string FilePath//ctrl+R+E
{
get { return _filePath; }
set { _filePath = value; }
}
//自动属性 prop+两下tab
public string FileName { get; set; }
public BaseFile(string filePath, string fileName)
{
this.FilePath = filePath;
this.FileName = fileName;
}
//设计一个函数 用来打开指定的文件
public void OpenFile()
{
ProcessStartInfo psi = new ProcessStartInfo(this.FilePath + "\\" + this.FileName);
Process pro = new Process();
pro.StartInfo = psi;
pro.Start();
}
}
class TxtFile : BaseFile
{
//因为子类会默认调用父类无参数的构造函数
public TxtFile(string filePath, string fileName)
: base(filePath, fileName)
{ }
}
class MP4File : BaseFile
{
public MP4File(string filePath, string fileName)
: base(filePath, fileName)
{ }
}
class AviFile : BaseFile
{
public AviFile(string filePath, string fileName)
: base(filePath, fileName)
{ }
}
}
文件打开练习
最新推荐文章于 2022-12-16 09:47:16 发布