C#

1. Select sorting Select sortClass SelectionSorter{Private int min;Public void Sort (int [] arr){For (int I = 0; I {Min = I;For (int j = I + 1; j {If (arr [j] Min = j;}Int t = arr [min];Arr [min] = arr [I];Arr [I] = t;}}Static void Main (string []

Using System;Using System. Collections. Generic;Using System. ComponentModel;Using System. Data;Using System. Drawing;Using System. Text;Using System. Windows. Forms; Using System. Runtime. InteropServices;Using System. Net; Namespace MacApp{Public

1.Parent class: public virtual string ToString () {return "";}Subclass: public override string ToString () {return "B ";}2.In the same class or in the parent-child relationship class:Public string ToString () {return "";}Public string ToString (int

Using System;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Text. RegularExpressions;Namespace Common{/// /// String operation class/// Public class StringHelper{Public StringHelper (){}/// /// A prompt dialog

This class can directly play mp3 files Usage: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->ClsMCI cm = new clsMCI (); Cm. FileName = "let alone I am a goat "; Cm. play ();     Class Code Code

During the idle time, I learned the keyboard hook and used the C # language to design and implement it. below is the class diagram I designed: There are two types of keyboard hooks: Global hooks and private hooks. Here I will design them in two

Generally, we want to test the method or the type with higher efficiency. We can use the Stopwatch class for testing. I only know it now. Let's look at a small example. Prerequisite: first reference using System. Diagnostics; namespace. Code

Basic concepts of Attribute Some people often ask, what is Attribute? What is its use? It seems that this program can run without it. In fact. in Net, Attribute is a very important component. In order to help you understand and master Attribute and

Steps: 1. Create a new dataset and place the table in the database into DataSet2.xsd. 　　　　　　 2. Create a New Crystal Report and follow the Wizard to create the Crystal Report, as shown below: 　　　 3. Create a new WINDOWS form, place a

1. Stack Definition The System. Collections. Stack class indicates a simple post-first-out non-generic set of objects.2. Advantages 1. A collection of later, first, and foremost. 2. Stack can accept null references as valid values and allow repeated

1. Queue Definition The System. Collections. Queue class indicates the object's first-in-first-out set. objects stored in the Queue are inserted at one end and removed from the other end.2. Advantages 1. sequential processing of sets (first-in-first-

Using PrintDialog in C # allows you to conveniently print programs. The procedure is as follows: Create a PrintDialog instance. As follows:System. Windows. Forms. PrintDialog PrintDialog1 = new PrintDialog (); Create an instance of

To display the current User in the form, use Application. User to obtain XPathNavigator navigator = this. CreateNavigator (). SelectSingleNode ("/my: fields/my: employee/my: name", this. NamespaceManager );Navigator. SetValue (this. Application.

/// /// Cookie operation/// Public class Cookie {Private Cookie (){}Private static Cookie _ instance = new Cookie ();Public static Cookie _{Get {return _ instance ;}Set {_ instance = value ;}}/// /// Add Cookie/// /// key name /// key value ///

Main ideas: 1. Have a corpus 2. Count the frequency of occurrence of each word and use it as a naive Bayes candidate. 3. Example: The corpus contains phrases such as China, the people, the Chinese, and the republic. Input: Chinese people love the

Close closes the form. The object still exists. You may need to use it again after calling the Close function to release the resource. Dispose: destroys an object. The form object is recycled, that is, it does not exist. The resources released by

The following example creates an OleDbConnection and an OleDbTransaction. It also demonstrates how to use the BeginTransaction, Commit, and Rollback methods. Public void RunOleDbTransaction (string myConnString){OleDbConnection myConnection = new

A colleague was recommended to use "optional parameters" a few days ago. After the recommendation, I also described it as a new feature in. Net 4. However, it was discovered later that this new feature is the language feature of C #4.0 and has

After the University expanded its enrollment, all types of universities or colleges emerged like Ox Hair. The phenomenon is the decline in the quality of university students, while the quality of university teachers is also less than the number of

1, Interface IOriginator Where T: IState{/// /// Save a memo/// /// /// Default method -- full memo of all current data/// Void SaveCheckPoint (); /// /// Restore a memo/// /// /// Default method -- restore the last full memo/// Void Undo (); /// ///