mdx basics

Android basics 1: Android BasicsMobile development basics 1. Basics Mobile development: it refers to the development based on portable terminals such as PDA and UMPC. PDA: Person Digital Assistant Personal Digital Assistant UMPC: Ultra-mobile Personal Computer super mobile PC, portable notebook Three major mobile development platforms: Android Linux Kernel

2 hours for python BASICS (1) and 2 hours for python Basics 2 hours of learning python BASICS (1) Python is a dynamic language with no type identifiers. All types are runtime identifiers.Let's take a look at the basic data types of python.There are integers, same as java int such as 5Floating Point number, such as 5.54523There are strings, and there are minor dif

Servlet BASICS (1): servlet Basics I haven't looked at servlet for nearly a month, and I haven't gone deep into my first study. I just read it all in a general sense. After compiling some basic cases, I feel like I have never learned it. Here, I will take a moment to sort out these foundations, deepen my impressions and prepare for future quick review. After all, this is a fast-paced society, and everything

JavaScript language basics 5: javascript language basics About numerical calculation and character operations The following code is used for analysis: The effect is as follows: JavaScript supports various basic mathematical operations, defining the variable value1 for addition, subtraction, multiplication, and division. In JavaScript, auto-increment (++) and auto-increment (--) are also supported (--) T

Java programming basics-parameter transfer for method calls, java programming Basics There are two arguments for passing parameters when calling a function in Java code: Passing values and passing references. If the basic type of Java (int, boolean, etc.) is used as a parameter, it is considered to be a value, and if it is an object type, it is considered to be a reference. Next we will analyze the scenario

SuperSocket basics 1: SuperSocket Basics SuperSocket BASICS (I) ------ Basic Concepts The TCP socket service framework has been used in the project before, but it is not conducive to expansion. I recently got started with the open-source superSocket. It feels very good. Let's record it. Official Open Source Address: http://www.supersocket.net/Basic concepts:

1.27 Java Basics Summary ① access modifier access rights ② classes and methods basic declaration and useMember variables (properties)Adding member variables to the ① classAccess modifier type variable name private String name② instantiating an ObjectCall the constructor method class of the class to construct the object, Teacher one = new Teacher ();Static can be called directly, because static is class-levelGeneral rules of ③javabean insideThere shoul

Java basics --- I/O technology (3), basics --- I Followed by the previous java basics-I/O technology (2)Java object serialization and deserialization what is object serialization and deserialization? To complete the input or output of an object, you must also rely on the object output stream (ObjectOutputStream) and object input stream (ObjectInputStream ). The p

Python BASICS (1), python BASICS (I. Python Environment Windows: 1. Download the installation package https://www.python.org/downloads/2?install the default installation path: C: \ python273. Configure the environment variable [Right-click the computer] -- "[attribute] --" [advanced system settings] -- "[advanced] --" [environment variable] -- "[in the second content find a line with the variable name Path

Network College, Mr. Hongbin's strong support, you can see this article.The author earnestly hope that through this article for the vast number of WEB developers and enthusiasts to facilitate, so that everyone together to participate in the study and exchange of ASP, in order to cover the needs of different levels of readers of the author or decided to start from the most basic scripting language, then a step by step to explain the ASP built object, ActiveX Components and examples of developing

Thread basics, java multithreading Basics Why does Windows support threads? In early computers, OS had no thread concept. The whole system was running a single thread, and CPU resources were occupied by one thread. You could only process one Computing tasks, such as processing and printing a single task or some other computing tasks, when a BUG occurs in the task, the program stops responding. The processin

JavaScript basics-exercises and javascript Basics Basic Javascript Learning Eg: Use a regular expression to remove spaces. 1: msg = 'hello '; Eg: Use js to display the password strength during login This mainly uses regular expressions for judging and js operation styles to change the following colors. Note that do not forget to write a break when using a switch. About notes: you must write the note

Sass BASICS (I), sass Basics Css is a combination of some very simple statements. Since simple statements, there are inevitably many repetitive and redundant items, and there is no traditionalProgramming Language variables, control statements and other advanced features, so css writing is inefficient, often need to find replacement, a large number of copies to modify or write. Sass is usedMake up for these

[Program Design Basics _ c Language] the evil dragon and Program Design Basics of Beijing Institute of Technology _ cEvil dragon of Beijing Institute of Technology (attached qsort instance) Background:Recently, Beijing Institute of Science and Technology has a dragon with many heads and fires. It will burn Beijing Institute of Science and Technology into ruins. As a result, the principal ordered all the wa

Canvas BASICS (2) canvas Basics Html section: Part 1 save and restore the drawing statusIn the canvas, the drawing State refers to the complete set of attributes that describe the 2D rendering context appearance at a specific time point, from simple color values to complex transformation matrices and other featuresNote: The current path and the current Bitmap (displayed content) on the canvas are not in th

WinSock network programming BASICS (1) and winsock network programming Basics Record the problems encountered during windows Network Programming and related notes Basic concepts: Socket: Socket originated from UNIX. Socket is an intermediate software abstraction layer for communications between the application layer and the TCP/IP protocol family. It is a set of interfaces. Based on the "open-read/write-Clo

Java basics ----> Java formatting output, java basics ---- formatting In JavaSe5, the printf () format output in C language is introduced. This not only makes the control output code simpler, but also gives Java developers more control over the output format and arrangement. Today, we begin to learn about formatting output in Java. System. out. format () Because the content is relatively simple, we use exam

Java basics --- thread issues, java basics ---1: Inherit the Thread class. Why should we inherit the run method? Answer: Thread implements the Runnable interface, The run method is the Runnable method, and the method in the interfaceThe default value is public abstract. If the Thread class is inherited and the run method is not overwritten, no error is reported, butSet the code for running the thread.2: dif

Java basics --- Servlet filter, basics --- servlet Servlet filters are literally understood as landscape-level filtering to meet the requirements of use. In fact, Servlet filters are the middle layer components of server and client requests and responses, in actual project development, Servlet filters are mainly used to filter browser requests and forward filtered requests to the next resource. Basic concep

Java basics-enumeration details, java basics Enumeration Before JDK1.5, JAVA can define new types in two ways: classes and interfaces. For most object-oriented programming, it seems sufficient to have these two types, but it is not suitable in some special cases. For example, if you want to define a Color class, it can only have three types of Red, Green, and Blue, and other values are incorrect, the enumer