C#

Recently, I uploaded a course in the smart. Net job class to the Information Technology University. At noon, a teacher from the Information Technology University asked me about the regular expression. The question is roughly described as

Using System;Using System. Collections. Generic; Class DictionaryDemo{Static void Main (string [] args){DictionaryDemo001 ();Console. ReadLine (); DictionaryDemo002 ();Console. ReadLine (); DictionaryDemo003 ();Console. ReadLine ();} /// /// General

Previous Article Workshop. The WhenAll auxiliary method summarizes a series of task objects. Once an error occurs, an "one of them" exception is thrown. So what is the exception? What if we want to handle all exceptions? This time, we will discuss

1. decompression method Reprinted from the http://www.bkjia.com/kf/201204/128704.html "C#decompress The. ZIP file. A lot of methods are found on the Internet, using System. IO. compression. GZipStream uses the J # library function and the Java-based

Like C, C # has some pre-processor commands. For example, # if # end if, # define, and so on, these commands do not convert to some commands in the executable code, but play a role in the compilation process.The following is a brief introduction:1. #

Private void Form1_Load (object sender, EventArgs e){SerialPort1.PortName = "COM1 ";SerialPort1.BaudRate = 9600;SerialPort1.DataBits = 8; // data bitSerialPort1.Parity = System. IO. Ports. Parity. None; // No Parity bitSerialPort1.StopBits = System.

Use the SystemInformation class [Csharp]// The size of the Work Field on the current screen except the taskbarString currentScreenSize_OutTaskBar = SystemInformation. WorkingArea. Width. ToString () + "," + SystemInformation. WorkingArea. Height.

Const constant1. it can be used to modify fields or local variables of a class. the variable modified by const can only be a value type, not a reference type. in fact, it can also modify the reference type, but the reference type can only be null

Example: sealed class Buggy{Void Defaulted (double d = 0.0) 1{...}Void ReadOnly (const ref Wibble w) 2{...}Ref int ReturnType () 3{...}Ref int fieldModifier; 4}The error of the 1st functions is: The function in C # cannot have default parameters.The

We define the YSchool and YTeacher classes. when instantiating an object: [Csharp]YSchool shool1 = new YSchool (); Shool1.ID = 1; Shool1.Name = "Tsinghua 中 "; YSchool school2 = new YSchool (); School2.ID = 2; School2.Name = "中 ";YSchool shool1 = new

1. Basic working principle of jni(1) essence of javaTo understand the essence of jni, we must start with the essence of java. in essence, the java language is a scripting language (this is my personal understanding, and I hope java heroes will not

You must understand the PE file structure and basic windowsAPI. The following program replaces the MessageBoxA function in user32.dll with its own MyMessageBox, which is a redirection function.   [Cpp]// NormalProject. cpp: Defines the entry point

(1) // c1TrueDBGrid sets whether a column is displayed.This. c1TrueDBGrid1. Splits [0]. DisplayColumns ["fieldName"]. Visible = false;(2) // obtain the current number of lines through c1TrueDBGridInt rows = this. c1TrueDBGrid2. Splits [0]. Rows.

C # timeout may occur during reading and writing. Microsoft provides two attributes for us to set the timeout value. The read timeout value is initially set to 500 milliseconds in Win32 communication API. This attribute allows you to set this value.

Today we will share with you the operators and condition structures in C.In the preface, We have briefly understood the C # language and probably understood the basic content of C, in future analysis, we will Package C # into our brain step by step

C # The principle of shared memory operations is the same as that of c ++ shared memory operations, but c # may seem a bit complicated. Now we will record the read/write shared memory encapsulation functions encapsulated yesterday. On the one hand,

The following call functions are all functions used in the project. Therefore, you do not need to modify the c ++ functions one by one to the functions supported by c # In msdn. [Csharp]// Create a file ing[DllImport ("kernel32.dll", EntryPoint =

Many people have used generics. However, we have been puzzled by generics. For example, we often use arraylist. But he does not know his benefits. Generic: when we define a method. The parameter to be used can be (1) int, (2) string, (3) array, or (

There are two parts: one is the operation class and the other is the test. Code directly   I. Test code Private void button#click (object sender, EventArgs e){String newSourcePath = ImgPath; // source image storage directoryString newNewDir =

Given a nest structure, let's simulate beebot production. N Bees produce 26 types of honey and specify to produce honey in a certain column. Once the honey is produced in a certain column, the honey runs from the top to the bottom. If the column is