how to use while

The interrupt controller is an integrated circuit that detects many of these electrical signals and generates a unique data format for them on the processor's data bus. PCs with 32-bit processors usually have two pieces of interrupt processing chips,

In Java multi-threaded applications, queues are used very highly, and the preferred data structure for most production consumption models is queues. Java-provided thread-safe queues can be divided into blocking and non-blocking, where the typical

Example: Cursor loop loop cursor SET serveriutput on DECLARE r_emp emp%rowtype; 　　CURSOR C_emp is a SELECT * from EMP; 　　BEGIN OPEN c_emp; 　　LOOP FETCH c_emp into r_emp; 　　EXIT when C_emp%notfound; Dbms_out. Put. Put_Line (' Salary of Employee ' | |

Object-oriented programming has three main characteristics: encapsulation, inheritance, polymorphism. Encapsulation hides the internal implementation mechanism of the class, and can change the internal structure of the class without affecting the

The use of foreach is often used in PHP, and if you use foreach, you must use an array. So in this article, we talk about the array, and we're talking about foreach. foreach has two kinds of syntax: First: Iterate over the given array statement

The purpose of the __init__.py file is to change the folder into a Python module, with __init__.py files in the package for each module in Python. Usually the __init__.py file is empty, but we can also add additional functionality to it. When we

The cursor is evil! In relational databases, our thinking about queries is set-oriented. The cursor breaks this rule, and the cursor makes the way we think is done on a line-by-row basis. For developers of Class C, this is a more comfortable way to

Thinkphp is a fast, simple MVC and object-oriented lightweight PHP development framework that follows the release of the Apache2 Open source protocol and has been adhering to simple and practical design principles since its inception, with

Usage of the PHP tutorial loop statement for while doing whileLoop structureOne, while loopwhile (expression){loop body;//Repeat until the expression is false} $num = 1; while ($num Print "number is $num ";$num + +;} print ' Done. '?>

Envious of Naruto Naruto's shadow? Yes, PHP programs can be used to start the shadow of the Avatar! Want to complete the task, and feel that a process is too slow, then, try a lot of process to do it. This article will explain the basic requirements

Generally in JavaScript, the array is traversed by using a for loop, as in the following Copy Code code as follows: var arr = []; for (var i=0; iLoop } The biggest problem with this code is that it gets. Length at every

Package com.data.struct; Import java.util.ArrayList; Import Java.util.Iterator; Import java.util.List; public class Test2 {public static void main (string[] args) {list List = new Arraylist (); int runTime = 1000;//The number of executions

js| News | Web page JavaServer pages (JSP) is a combination of cross-platform and cross Web server mechanism, Java-oriented technology to generate dynamic Web pages. JSP is compatible with Microsoft's ASP (Active Server Pages), but it uses HTML-like

Javascript This article is Dengyong by the classic forum Tsinghua University published the "Half a series of JavaScript", I read the book, some translated it. A few years ago looked, recently nothing, turned over, very helpful. This book should have

1. Do the website must have the practical content, must have the real demand the thing, you may think about now the netizen needs what? If you are a webmaster station, you can think about what the webmaster needs. Remember this phrase, to be a

Compared to Java from the evolution of simple to complex, PHP loyal to easy to learn the original flavor of the insistence by the vast number of developers welcome, in recent years, the momentum rose, and simple is power, this sentence applies to

The PHP era is far from overThe worry about the future of PHP is a long-standing one, with Microsoft's. NET platform, which controls the operating system, and the Java technology that is red through the sky: PHP seems to have come to an end. However,

Now that you see this article, you must know what PHP and MySQL are all about, and I'm not going to nag. But why do you continue to read this article? Maybe it was before you used to copy and paste some code, not really understand the meaning of the

(Note: This article in the reprint of the same time make a small number of changes. ） The Qdialog display has two functions show () and exec (). Their differences are explained in the reference documentation as follows: Show ():Displays a modeless

The array inside the 1.scala is similar to that in Java, but there are some different ways of initializing the array, which is a bit more than Java, as follows: The code is as follows: Package Com.scala.demo /** * Here is the main introduction to