C#

Two. Value types and reference types2.1 Value types: All numeric types are value types (short int long float double ... ), enumeration, Boolean type, structure2.2 Reference types: Objects, strings, object, arraysThe value of the 2.2.1 reference type

About the changes in the asynchronous programming model in c, Some asynchronous programming scenarios will be used in the programming process. In c #'s BCL, many APIs provide asynchronous methods. Beginners may be confused about the use of different

C ++, C #, java Algorithm learning diary 06 ---- HeapSort) What I learned in the previous articleHill sortingIt is an efficient optimization of insert sorting, while heap sorting is an efficient optimization of selection sorting. It is also a kind

Parallel Programming-Concurrent Collections, concurrentparallel Memo: thread security collection class on the asp.net platform.     Class Description BlockingCollection Provides blocking and bounding capabilities for

The meaning of System. Diagnostics. Process. Start (e. LinkText); is unknown. 1 using System; 2 using System. data; 3 using System. drawing; 4 using System. text; 5 using System. windows. forms; 6 namespace Test11 7 {8 public partial class Form1:

Why can an array be queried using linq? Problem cause This is almost a topic that does not need to be discussed at all, because linq (here specifically, linq to objects) is originally for the set type, the array type can be used as a collection type.

Event, time Preface For. net friends, they often encounter problems about events and delegation: What is the relationship between events and delegation? What is the essence of an event? What is the essence of delegation? Because. net has made a lot

C # How to implement a simple flowchart designer, I have seen a lot of flowcharts developed by Window Form in the past. It supports drag-and-drop nodes to easily design beautiful flowcharts. As a programmer, I have always been curious about its

Letter of authorization Preface 　　Delegation and events are two important knowledge in c #, which are often used in daily work. Next I will write two articles about my understanding of delegation and events. Callback functions are a very useful

Four Methods of Map traversal in Java, javamap How to traverse Map objects in Java   Method 1: This is the most common and is also the most desirable Traversal method in most cases. Used when key values are required. 1 Map map = new HashMap(); 2 3

NPOI Excel Style settings, npoiexcel Style1. Create an Excel file // Create a workbook XSSFWorkbook workbook = new XSSFWorkbook (); // create a page ISheet sheet = workbook. createSheet ("sheet1"); // create an IRow row = sheet. createRow (0); //

Get and set in C, Http://blog.sina.com.cn/s/blog_82526aa60100txtx.html Get and set are often encountered in the program, but they are not quite clear. They are also confused during online queries, so they can be well understood. There are two

C # Use SharpZipLib to generate gzip/decompress filesCode tells all: using System;using System.IO;using ICSharpCode.SharpZipLib.GZip;using ICSharpCode.SharpZipLib.Core;namespace CNKIDataExport{ class Program { public static void

C # multi-thread Technical Summary (synchronization ), Ii. Serial (synchronous ): 1. lock and Monitor -- note that the locked object must be of the reference type (except string type) Example: Private static object syncObject = new object ();

How to Increase Throughput and Increase Throughput Performance improvement is just a few elements, as I mentioned in my previous blog post. This article is just a little simpler. Because the hardware configuration is fixed, let's simply talk about

C # multi-thread Technical Summary (asynchronous ), Here I will summarize the existing C # multithreading technology. One is review, and the other is convenient indexing. Some knowledge points in this article come from the Internet and are not

C # Four random operations on the form (fourth job ), --- Restore content start --- Incremental content: 1) handle incorrect user input, such as input letters or symbols. handle the case where the denominator is 0 in the division operation and the

Object-oriented basic advanced 02 and object-oriented advanced 02 I. Three features of object-oriented Encapsulation, inheritance, and Polymorphism Encapsulation 1: Concepts and functions of encapsulation * The private and public modifiers are

Case study: CopyToAsync and copytoasyncReturn to the Task-based asynchronous mode in this series of directories-Overview   It is a useful and common operation to copy a stream to another stream. The Stream. CopyTo method has been added to. Net 4 to

C # Interactive Shell, C # Pad is a bit like ImmediateWindow in Visual Studio. Some variables in the program running are saved and can be accessed directly from the command line to facilitate code execution for testing or debugging. Each small