.NET中进程的基本使用
进程
一个应用程序就是一个进程,而一个进程又是由多个线程组成的。
进程帮助我们在内存中分配应用程序执行所需要的的空间
我们可已通过进程来直接操作应用程序
1、输出所有进程
using System;
using System.Diagnostics; //Process
using System.IO; //Path
namespace ConsoleApp3
{
class Program
{
static void Main(string[] args)
{
Process[] pro = Process.GetProcesses();
foreach (var item in pro)
{
//item.Kilee();
Console.WriteLine(item.ProcessName);
}
Console.ReadKey();
}
}
}
2、打开系统工具
using System;
using System.Diagnostics; //Process
using System.IO; //Path
namespace ConsoleApp3
{
class Program
{
static void Main(string[] args)
{
Process.Start("notepad"); // 记事本
Process.Start("mspaint"); // 画图
//Process.Start("iexplore"); ie浏览器
//Process.Start("iexplore","http://wwwbaidu.cpm");
//Process.Start("calc"); 计算器
Console.ReadKey();
}
}
}
3、打开指定路径的文件
using System;
using System.Diagnostics; //Process
using System.IO; //Path
namespace ConsoleApp3
{
class Program
{
static void Main(string[] args)
{
ProcessStartInfo psi = new ProcessStartInfo(@"D:\天健\SQLTracker\sqldbmon.exe");
Process pro = new Process();
pro.StartInfo = psi;
//pro.StartInfo.UseShellExecute = true;
pro.Start();
Console.ReadKey();
}
}
}
4、小练习 (打开指定文件)
using System;
using System.Diagnostics; //Process 需引用
using System.IO;
namespace ConsoleApp2
{
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名字");
string fileName = Console.ReadLine();
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);
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
{
get => _filePath;
set => _filePath = value;
}
public string FileName {
get; set; }
public BaseFile()
{
}
public BaseFile(string filePath, string fileName)
{
this.FileName = fileName;
this.FilePath = filePath;
}
public void OpenFile()
{
ProcessStartInfo psi = new ProcessStartInfo(this.FilePath + "\\" + this.FileName);
Process pro = new Process();
pro.StartInfo = psi;
pro.StartInfo.UseShellExecute = true;
pro.Start();
}
}
class TxtFile : BaseFile
{
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)
{
}
}
}