edx golang

Premise:1. Install Ubuntu2. use vagrant+virtualbox to build the EdX Developer Stackon ubuntn and to successfully access3. Pycharm-3.4.1 is installed and activated successfully under Ubuntu4. future development in Ubuntu environmentPreparatory work:1. convert path to native /devstack/2. turn on vagrantand enter the command:Vagrantup3. using ssh connection vagrant, enter the command:Vagrantssh4. give the edxapp account A password, enter the command:SU

Open Online education platform EdX opened in June this year, when the Google group method "clean install on Ubuntu Server 12.04" in a brand new VPS installed A, although the final installation was successful, but also spent some trouble, Finally, the overall impression of the edx system is somewhat bloated, dependent on too much, not too lightweight. A few days ago a friend of Peking University in the insta

After practicing for several days edx Devstack, found himself e is still so poor, if and I like, continue to look down, otherwise you can gently drift over ~1. Run the edx devstackCd/devstackVagrant upVagrant SSH(The above should be more familiar with:)This article refer to Https://github.com/edx/edx-platform/wiki/Inte

Label: Ar c working time r as Rom net 5CATEGORY first, 1. skill category; 2. improvement category; 3. Interest category.I have completed the first six courses of Andrew Ng ml, UW computer network, and dataset cience on Coursera.In the future, the service will be guaranteed to be 25 hours a week, with an average of 2.5-3 hours per working day and 11 hours on weekends. In this way, three courses can be conducted at the same time in less than ten weeks, it also needs to be arranged according to the

Note: During addition calculation, it is actually performed on a 32-bit accumulators, and pay attention to the conversion between types. Data truncation problems generally include ax, BX, CX, Dx. Ax: cumulative latches, Bx: Base latches, CX: Count latches, DX: Data latches Index latches: Si and Di Si: source index storage, DI: Destination index Storage Stack and base latches: SP and BP SP: stacked indicator latches, BP: Base Indicator latches Eax, ECx,

Functions of EAX, ECX, EDX, and EBX registers, ecxebx General registers: AX, BX, CX, DXAX: cumulative latches, BX: Base latches, CX: Count latches, DX: Data latchesIndex latches: SI and DISI: source index storage, DI: Destination index StorageStack and base latches: SP and BPSP: stacked indicator latches, BP: Base Indicator latchesEAX, ECX, EDX, and EBX: extensions of ax, bx, cx, and dx, each of which is 32

Recently, due to work, an open EdX instance was installed in Ubuntu virtual machine on Azure, and the installation process encountered a lot of problems, and learned different knowledge in the process of finding the answer from the Internet.Create an authentication certificate file for SSHWhen connecting to an Ubuntu virtual machine using the Putty (http://www.putty.org/) tool, two options are available for authentication: username + password; Another

;Sb.append (Hexdigits[b >> 4]);Sb.append (Hexdigits[b 15]);Sb.append (");}return sb.tostring ();}private static class Savingtrustmanager implements X509trustmanager {Private Final X509trustmanager TM;Private x509certificate[] chain;Savingtrustmanager (X509trustmanager tm) {This.tm = TM;}Public x509certificate[] Getacceptedissuers () {throw new Unsupportedoperationexception ();}public void checkclienttrusted (x509certificate[] chain, String authtype)Throws Certificateexception {throw new Unsuppo

Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example:Add eax,-2;// It can be considered that a value such as-2 is added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. EaxIt is an accumulator, which is t

From: http://hi.baidu.com/helloembed/blog/item/2fd65453843120511038c21a.html Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "experti

Organize from the Internet Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. Eax is the ac

PrefaceThis is my blog park the first article, write not in place, I hope you guys understand.I have been engaged. NET development work, recently in learning Golang, so think about the process of learning before not how to properly record the learning process. Deeply sorry!Now will golang the learning bit record share, nonsense to this, enter the text below.Note: The development platform for this article an

This is a creation in Article, where the information may have evolved or changed. Environment System: Linux (Don't ask why, because Windows Golang does not support dynamic libraries)Golang Version: 1.5 support dynamic library, more than 1.8 support plugin Plug-in code The plugin code is no different from the normal Golang module code, mainly the package must be m

This is a creation in Article, where the information may have evolved or changed. Win7 (64-bit) under Eclipse Configuration Golang Development Debugging environment 1. Download the Golang Toolkit (which you can think of as Java-like JDK), I download the 64-bit installation package here: 2. Install the Golang Toolkit (one "next"), install completed at the comma

Golang Learning Notes Golang type conversion finishing go language string, int, int64, float64, complex convert each other #string到intInt,err:=strconv. Atoi (String)#string到int64Int64, err: = StrConv. parseint (String, 10, 64)#int到stringString:=strconv. Itoa (int)#int64到stringString:=strconv. Formatint (int64,10) #int到int64, turn int into a string and then turn to int64, return with the Err parameter need t

for range, the values of the matcher and feed variables are locked at the same time as the arguments passed into the anonymous function closure. When you use closures to access external variables, ask yourself how this variable will change, and how this change affects the operation of the closure. Resources: Http://devs.cloudimmunity.com/gotchas-and-common-mistakes-in-go-golang/index.html#closure_for_it_vars http://studygolang.com/articles

We know that the local variable initialization method in Golang (using ": =" to create and assign values) makes it convenient to use variables. However, this is also one of the places where mistakes are easy to make. In particular, this initializer also supports the initialization of multiple variables at the same time, and more particularly, it also supports the original variable assignment and new variable creation and assignment at the same time! T

In the grammar (i), we learn the basic elements of the basic data types, variables, constants, and so on in go, and in this section we will learn how to organize these elements and eventually write code that can be executed.In this section include:The Process Control statement in go;The use of functions in go;Go special error handling method;Process Control statements in the GolangIn the specific programming, it is necessary to use some special statements to implement certain functions, such as

Golang Learning Note 19 using Golang to implement Ethereum token transfer In the Ethereum blockchain, we call tokens tokens, which are digital assets that everyone in the Ethereum blockchain can freely distribute. And it must follow the ERC20 standard, as for the ERC20 standard, you can refer to this article Https://theethereum.wiki/w/index.php/ERC20_Token_Standard It's actually a smart contract co

Golang basics and golang Basics1. Inheritance overload is not supported. For example, for C ++ Java interfaces, modification of interfaces will affect the modification of class behavior of the entire interface to be modified. Go designers think this feature may be useless. 2. Any function definition must be followed by curly brackets after the function declaration and cannot be wrapped in a line break such