c basics

In this example, discuz Forum is built on the basis of LNMP,lnmp Environment of the building, in the previous blog has been introduced, here is not to repeat. the address of the download discuz Source package is: HTTP://WWW.COMSENZ.COM/DOWNLOADS/INSTALL/DISCUZXIn this example, the latest version of the 3.2 is selected , and after downloading, the files in the upload are uploaded to the bbs directory. [Email protected] ~]# Mkdir/usr/src/discuz[Email

architecture of the processor. If you want to know more about the iOS system and your app, then understanding the arm instruction set is essential, and the arm instruction set should also be the basis for iOS reverse engineering.The general processing is to enter the application on the pop-up window to notify the user there is a version update, pop-up window can not cancel the button cannot be canceled.This way the user can only choose to update or c

Python reads a file on a per-line basis, with line breaks at the end of each line, which makes it very inconvenient for subsequent business processing logic to remove line breaks for each line. Look at the following case:>>> A ="Hello world\n">>>PrintA#you can see a space below Hello world.Hello World>>> A.split ()#convert a character to a list by using the Split method['Hello',' World']#take the first character from a list>>>a.split () [0]'Hello'>>>H

Lecture 14:radial Basis Function Network14.1 RBF Network hypothesisFigure 14-1 RBF NetworkAs can be seen from Figure 14-1, the RBF nnet is not unique. is to use the RBF kernel as the activation function. Why do you want the RBF nnet? Is it universally acknowledged that the RBF nucleus is very good? If there are many mathematical formulae to go, will there be infinitely many nnet?What is the difference between a RBF neural network and a BP neural netwo

Java10-java grammatical Basis (ix)--java encapsulationFirst, the three main features of Java: Encapsulation, polymorphism, inheritanceEncapsulation: Encapsulates the data members and member methods of an object through a class, guaranteeing that only trusted classes or objects can access these methods and data members, and that information is hidden from untrusted classes or objects.Inheritance: Inheritance derives new classes from existing classes, a

Synchronized the basis for synchronization is that every object in Java can be used as a lock. It is shown in the following 3 ways:1 for the normal synchronization method, the lock is the current instance object.2 for the static synchronization method, the lock is the class object of the current classes.3 for a synchronous method block, the lock is an object inside the synchronized bracket.When a thread tries to access a synchronous block of code, it

Today saw the C video, think programming is not difficult, the key is the idea, the idea of proficiency is only in the understanding of the basis, and constantly skilled, skilled and skilled, the harvest is as follows: The declaration of a function can be written specifically in a header file, and then imported when used If the C language is judged by the if (), the constants should be written in front, so as to prevent the lack of writing pa

Python Learning Series (eight) (object-oriented basis) Python Learning Series (vii) (database programming)one, object-oriented 1, domain : A variable that belongs to an object or class. There are two types, instance variables -objects that belong to each instance/class, and class variables -that belong to the class itself. 2, class method : An object can also use a function that belongs to a class to have functionality, such that a function is

WML script is part of the Unlimited Application protocol WAP application layer, which can be used to add client-side processing logic to WML cards and cards, and the latest version is the 1.1 version. The WML Script1.1 is specified as modified and optimized on the basis of the ECMAScript scripting language developed by the European Computer manufacturer agreement. It is better able to support high-bandwidth communications devices such as mobile phones

I have a lazy idea. How should this good idea begin? Well, this is an appropriate little madness: Why not build our own MongoDB version directly on the basis of postgres? It sounds far-fetched, but it's simple and real. When the NoSQL movement was brilliant, the Postgres community did not sit around and fiddle with their thumbs. They continue to develop, throughout the Postgres ecosystem, and several prominent features have caught my eye: integrating

Introduction Typically, when a business process template is started, it enters a wait state. When a client initiates a request or has a triggering event, a new process instance is created based on the business process template. However, in some cases, the process is not triggered by the client, but requires the system to start automatically and periodically. For example, some business processes that perform system maintenance functions, or business processes that need to be performed on a regul

Label:The CAP theory is the basis of a NoSQL database that represents consistency (strong consistency), availability (availability), Partition tolerance (partition fault tolerance), and the data system can only meet two of these features.C: The system is still in a consistent state after performing an operation. In a distributed system, when the update operation succeeds, all users are able to read the latest value, and such a system is considered str

something I'm a little dizzy I still have to look more and think about it.Small A: in-depthChase Dream Son: you want ah. The function is not up to you to decide when to executeSmall A: Of course, call it to execute theChasing a dream: If you don't have this, do you think async is possible?Chasing the dream: Without this, all the code is executed directly, that is, only synchronizedLittle a: But you just tell him when to execute and when he's done, you don't know, asynchronously.Chase Dream Son:

Android now has high security requirements, I want to do today to confuse the APK, with all third-party tools can not decompile, the author's intellectual property is protected, is not a bunker. I, first of all, this is on the basis of 4.0. First Look at project.properties this file. # This file was automatically generated by Android tools.# does not modify this file--YOUR changes would be erased!## This file must is checked in Version Control syste

Generally in the HTML5 game development, the basis of the tag are used in the title, paragraph and branches, below to explain the following several of the most commonly used tags. Of course, the best way to learn HTML5 is to follow the example, and today our HTML5 game development tutorial starts with an example.First look at the tag app in the title. In HTML5 game development, we use a few tags from h1 to h6 to define the title of the article, each o

Python-based radial basis function (RBF) neural network example, pythonrbf This article describes the radial basis function (RBF) neural network implemented by Python. We will share this with you for your reference. The details are as follows: from numpy import array, append, vstack, transpose, reshape, \ dot, true_divide, mean, exp, sqrt, log, \ loadtxt, savetxt, zeros, frombufferfrom numpy

The basis of HTML theory: Applications developed using the B/S computing model we are generally referred to as Web applications.Structure section of the Web page: the definition of the structure is used in HTML language (Hypertext Markup Language Hyper text mark up Language).The presentation part of a Web page: The language that writes the document representation is the CSS language (cascading style sheets casading style Sheet).Web page Behavior sect

Vectors are the standard tool for 2D and 3D Mathematical research, and in 3D games vectors are the basis. Therefore, it is very important to master some basic concepts and properties of vectors and common operation methods. In this blog, horse and everyone to review and learn about the Unity3d in the common 3D mathematics knowledge.I. Vector concepts and basic definitions 1, mathematical definitions of vectors A vector is a list of numbers, a

is very similar to each other. But from the score on the X does not seem to like 2 of this content, and Y is more like, cosine similarity to the value of the non-sensitivity of the results of the error, need to correct this irrationality there is the adjustment of the cosine similarity, that is, all the dimensions of the value minus a mean , such as x and Y score mean is 3, Then the adjustment is ( -2,-1) and (after), and then the cosine similarity calculation, get 0.8, the similarity is negati

A little try to calculate the global illumination as a superior application of PRT. Completely self-realization, using sg/sh, h-basis fundamental to the GI light field of frequency-domain compression, there is 3D texture, for 2-hop indirect illumination real-time display. A lot of pits, especially in the HDR environment using different low-frequency baseband truncation approximation, there will be a considerable number of problems, fortunately all the