怎样在代码中设置进入某个路径？

Question

怎样在代码中设置进入某个路径？

Answer 1

ing System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using Microsoft.Win32;
using System.Runtime.InteropServices;
using System.Reflection;
//调用API函数需要的引用，来加载非托管类user32.dll namespace WindowsApplication3
{
   
      public partial class Form1 : Form
  {
     
    System.IO.StreamWriter sw;  // 定义输出流 sw 作为Shell的标准输入，即命令 
    System.IO.StreamReader sr;  // 定义输出流 sr 作为Shell的标准输出，即正常结果
    System.IO.StreamReader err; // 定义输出流 err 作为Shell的错误输出，即出错结果
      
    System.Diagnostics.Process p = new System.Diagnostics.Process();
      
     System.Diagnostics.ProcessStartInfo psI = new System.Diagnostics.ProcessStartInfo(System.Environment.GetEnvironmentVariable("aa"));      string Lujing;
      
      
    public Form1()
    {
       // string Lujing = Environment.GetFolderPath(Environment.SpecialFolder.System);//就能获得%system%了 
       
      Lujing=  Path.GetDirectoryName(Assembly.GetAssembly(typeof(int)).Location);//获得framework 的安装路径      //  Environment.SetEnvironmentVariable("aa", @"%comspec% /k ""C:\Program Files\Microsoft Visual Studio 8\VC\vcvarsall.bat"" x86");
      InitializeComponent();
    }
      
          string path;     
            private void Form1_Load(object sender, EventArgs e)
      {
         
      }
      private void bianyi()
      {
          p.StartInfo.UseShellExecute =false  ;
          p.StartInfo.RedirectStandardInput = true;
          p.StartInfo.RedirectStandardOutput = true      ;
          p.StartInfo.RedirectStandardError = true;
          p.StartInfo.CreateNoWindow = true  ;
          p.StartInfo.FileName = "cmd.exe";
         
          Cursor = Cursors.WaitCursor;
                   /*
          psI.UseShellExecute = false;
         psI.RedirectStandardInput = true;
         psI.RedirectStandardOutput = true;
        psI.RedirectStandardError = true;
         psI.CreateNoWindow = true;
         p.StartInfo = psI ;
           * */
          try
          {
              p.Start();
          }
          catch (Exception sf)
          {
              MessageBox.Show(sf.Message);
          }
          sw = p.StandardInput;
      sr = p.StandardOutput;
          err = p.StandardError;
          sw.AutoFlush = false; //true
        
          sw.WriteLine("cd "+Lujing );
         
          sw.Write ("csc ");
          sw.WriteLine(path);          int i = path.LastIndexOf("\\");
          int j = path.LastIndexOf(".");
          string filename = path.Substring(i + 1, (j - i - 1));
          sw.WriteLine(filename);
            sw.Close();          string str;
       str = "输出结果为:\n" + sr.ReadToEnd();
          MessageBox.Show(str);
          // tbResult.Text += "\n错误信息:\n" + err.ReadToEnd();          Cursor = Cursors.Default;      }      private void button1_Click(object sender, EventArgs e)
      {
          
          OpenFileDialog op = new OpenFileDialog();
          op.ShowDialog();
          path  = op.FileName;
          textBox1.Text = path;
          if (path != "")
          {
              bianyi();
          }
          else
              return;
         // MessageBox.Show(path);
      }
  }为什么这句 sw.WriteLine("cd "+Lujing );
进入不了该路径应该怎样改？

Answer 2

ing System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using Microsoft.Win32;
using System.Runtime.InteropServices;
using System.Reflection;
//调用API函数需要的引用，来加载非托管类user32.dll namespace WindowsApplication3
{
   
      public partial class Form1 : Form
  {
     
    System.IO.StreamWriter sw;  // 定义输出流 sw 作为Shell的标准输入，即命令 
    System.IO.StreamReader sr;  // 定义输出流 sr 作为Shell的标准输出，即正常结果
    System.IO.StreamReader err; // 定义输出流 err 作为Shell的错误输出，即出错结果
      
    System.Diagnostics.Process p = new System.Diagnostics.Process();
      
     System.Diagnostics.ProcessStartInfo psI = new System.Diagnostics.ProcessStartInfo(System.Environment.GetEnvironmentVariable("aa"));      string Lujing;
      
      
    public Form1()
    {
       // string Lujing = Environment.GetFolderPath(Environment.SpecialFolder.System);//就能获得%system%了 
       
      Lujing=  Path.GetDirectoryName(Assembly.GetAssembly(typeof(int)).Location);//获得framework 的安装路径      //  Environment.SetEnvironmentVariable("aa", @"%comspec% /k ""C:\Program Files\Microsoft Visual Studio 8\VC\vcvarsall.bat"" x86");
      InitializeComponent();
    }
      
          string path;     
            private void Form1_Load(object sender, EventArgs e)
      {
         
      }
      private void bianyi()
      {
          p.StartInfo.UseShellExecute =false  ;
          p.StartInfo.RedirectStandardInput = true;
          p.StartInfo.RedirectStandardOutput = true      ;
          p.StartInfo.RedirectStandardError = true;
          p.StartInfo.CreateNoWindow = true  ;
          p.StartInfo.FileName = "cmd.exe";
         
          Cursor = Cursors.WaitCursor;
                   /*
          psI.UseShellExecute = false;
         psI.RedirectStandardInput = true;
         psI.RedirectStandardOutput = true;
        psI.RedirectStandardError = true;
         psI.CreateNoWindow = true;
         p.StartInfo = psI ;
           * */
          try
          {
              p.Start();
          }
          catch (Exception sf)
          {
              MessageBox.Show(sf.Message);
          }
          sw = p.StandardInput;
      sr = p.StandardOutput;
          err = p.StandardError;
          sw.AutoFlush = false; //true
        
          sw.WriteLine("cd "+Lujing );
         
          sw.Write ("csc ");
          sw.WriteLine(path);          int i = path.LastIndexOf("\\");
          int j = path.LastIndexOf(".");
          string filename = path.Substring(i + 1, (j - i - 1));
          sw.WriteLine(filename);
            sw.Close();          string str;
       str = "输出结果为:\n" + sr.ReadToEnd();
          MessageBox.Show(str);
          // tbResult.Text += "\n错误信息:\n" + err.ReadToEnd();          Cursor = Cursors.Default;      }      private void button1_Click(object sender, EventArgs e)
      {
          
          OpenFileDialog op = new OpenFileDialog();
          op.ShowDialog();
          path  = op.FileName;
          textBox1.Text = path;
          if (path != "")
          {
              bianyi();
          }
          else
              return;
         // MessageBox.Show(path);
      }
  }为什么这句     sw.WriteLine("cd "+Lujing );
进入不了该路径我是调用framework安装目录下的CSC命令，DOS命令没错为什么进不了。

Answer 3

    string input = "c:\\temp\\a.cs";
    string exePath = "%SystemRoot%\\Microsoft.Net\\Framework\\v2.0.50727\\csc";
    string outputPath = System.IO.Path.ChangeExtension(input, ".exe");    exePath = System.Environment.ExpandEnvironmentVariables(exePath);
    string param = string.Format("/C {0} /OUT:\"{1}\" {2}", exePath, outputPath, input);    System.Diagnostics.Process proc = System.Diagnostics.Process.Start("cmd", param);
    proc.WaitForExit();http://topic.csdn.net/u/20080519/13/833c6d0c-a25a-4ab5-8667-de6ab2d0b4eb.html