博文
时钟线程(2007-09-23 20:03:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
class MyApp
{
private static bool TickNext = true;
public static void Main()
{
Console.WriteLine("Press Enter to terminate...");
TimerCallback callback = new TimerCallback(TickTock);
Timer timer = new Timer(callback, null, 1000, 1000);
Console.ReadLine(); //为什么 按 enter 键结束？？ 拖延程序执行时间，没有这行，看不什么结果。
}
private static void TickTock(object state)
{
Console.WriteLine(TickNext ? "Tick" : "Tock");
TickNext = !TickNext;
}
}......
后台线程例子(2007-09-23 19:46:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
class MyApp
{
static int i = 0;
public static void Main()
{
for (i = 0; i < 10; i++)
{
Thread thread = new Thread(new ThreadStart(ThreadFunc));
thread.IsBackground = true; //标记为后台线程。
thread.Start();
}
}
private static void ThreadFunc()
{
int j = i;
&......
前台线程例子(2007-09-23 19:44:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
class MyApp
{
static int i = 0;
public static void Main()
{
for (i = 0; i < 10; i++)
{
Thread thread = new Thread(new ThreadStart(ThreadFunc));
thread.Start();
}
}
private static void ThreadFunc()
{
int j = i;
DateTime start = DateTime.Now;
while ((DateTime.Now - start).Seconds < 2)
{
......
启动线程(2007-09-22 15:29:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
namespace _6_1
{
class Program
{
int i = 0;
static void Main(string[] args)
{
//thread 类的构造函数将threadstart 委托的实例作为唯一参数
Thread t = new Thread(new ThreadStart(new Program().calculate));
t.Start();//线程实例话后，用start方法让它运行起来
}
public void calculate()
{
Console.WriteLine("the value of i is {0}",++i);
......
序列化与深度复制例子(2007-09-22 14:53:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Collections;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
namespace _5_14
{
public class DeepCopyUtility
{
public static void Main()
{
Region obj = new Region("Reg 1");
Console.WriteLine(obj);
Region copiedobj = (Region)DeepCopy(obj);
Console.WriteLine(copiedobj);
Console.WriteLine(obj == copiedobj);
}
&nb......
异步io的一个例子(2007-09-21 16:15:00)
摘要：//异步io的一个例子， 不明白？？？？ 异步为什么那样复杂，以及异步io的步骤。
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Threading;
namespace _5_10
{
public class filereader
{
const string path = "E:\\1.txt";
public void synccall() //同步的
{
FileStream fs = new FileStream(path,FileMode.Open,FileAccess.Read,FileShare.Read,1024,false);
int x = 0;
while ((x = fs.ReadByte())!= -1) { }
fs.Close();
&nbs......
浏览目录文件例子(2007-09-21 13:39:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace _5_9
{
class Program
{
static void Main(string[] args)
{
const string base_path = "E:\\windows程序设计";
browsedirectories(base_path);
}
private static void browsedirectories(string dirpath) //这个程序的 dirpath 目录下包含的符合条件的文件，会被忽略。
{
string[] directories = Directory.GetDirectories(dirpath); //得到此目录下的所有 文件夹及文件。
//Console.WriteLine("directories......
文件目录操作例子(2007-09-21 11:40:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace _5_8
{
class Program
{
const string base_path = @"E:\c#\c#_net\chuck";
static void Main(string[] args)
{
//如果打算多次重用某个对象，可考虑使用 DirectoryInfo 的实例方法，而不是 Directory 类的相应静态方法，因为并不总是需要安全检查。
//create directory
DirectoryInfo dir = Directory.CreateDirectory(base_path); //按 base_path 的指定创建所有目录和子目录
//create subdirectories
string path = null;
&n......
file类静态方法2(2007-09-18 17:27:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.Text;
using System.IO;
namespace _5_6
{
class Program
{
public const string TO_FILE = @"E:\c#\c#_net\15_6\test.txt";
public const string COPY_TO_FILE = @"E:\c#\c#_net\15_6\test2.txt";
public const string MOVE_TO_FILE = @"E:\c#\c#_net\15_6\test.mov";
static void Main(string[] args)
{
Console.WriteLine(File.Exists(TO_FILE)); //Exists 方法，当路径参数不对时抛出异常
Console.WriteLine(File.Exists("E:\\c#\\c#_net\\15_6"));
File.Copy(TO_FIL......
file类的一些静态方法例子(2007-09-18 16:52:00)
摘要：using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace _5_71
{
class Program
{
static void Main(string[] args)
{
string path = @"E:\c#\c#_net\15_71\test.txt";
//appendtext();
if (!File.Exists(path))
{
// Create a file to ......