关于一些很酷的.Net技巧的翻译_.Net教程

OperatingSystem os = Environment.OSVersion;

MessageBox.Show(os.Version.ToString());

MessageBox.Show(os.Platform.ToString());

public sealed class DriveInfo
{
[DllImport("kernel32.dll", EntryPoint = "GetDiskFreeSpaceExA")]
private static extern long GetDiskFreeSpaceEx(string lpDirectoryName,
out long lpFreeBytesAvailableToCaller,
out long lpTotalNumberOfBytes,
out long lpTotalNumberOfFreeBytes);

public static long GetInfo(string drive, out long available, out long total, out long free)
{
return GetDiskFreeSpaceEx(drive, out available, out total, out free);
}

public static DriveInfoSystem GetInfo(string drive)
{
long result, available, total, free;
result = GetDiskFreeSpaceEx(drive, out available, out total, out free);
return new DriveInfoSystem(drive, result, available, total, free);
}
}

public struct DriveInfoSystem
{
public readonly string Drive;
public readonly long Result;
public readonly long Available;
public readonly long Total;
public readonly long Free;

public DriveInfoSystem(string drive, long result, long available, long total, long free)
{
this.Drive = drive;
this.Result = result;
this.Available = available;
this.Total = total;
this.Free = free;
}
}

string strParent = "The Codeproject site is very informative.";

string strChild = "codeproject";

// The line below will return -1 when expected is 4.
int i = strParent.IndexOf(strChild);

// The line below will return proper index
int j = strParent.ToLower().IndexOf(strChild.ToLower());

using System.Globalization;

string strParent = "The Codeproject site is very informative.";

string strChild = "codeproject";
// We create a object of CompareInfo class for a neutral culture or a culture insensitive object
CompareInfo Compare = CultureInfo.InvariantCulture.CompareInfo;

int i = Compare.IndexOf(strParent,strChild,CompareOptions.IgnoreCase);

http://www.mb5u.com/
public Student(Student student)
{
this.name = student.name;
}

class Student
{
private string name;

public Student(string name)
{
this.name = name;
}
public Student(Student student)
{
this.name = student.name;
}

public string Name
{
get
{
return name;
}
set
{
name = value;
}
}
}

class Final

{

static void Main()

{

Student student = new Student ("A");

Student NewStudent = new Student (student);

student.Name = "B";

System.Console.WriteLine("The new student's name is {0}", NewStudent.Name);

}

}

The new student's name is A.