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Golang because of its simple syntax, quick and easy deployment is being favored by more and more developers, a Golang program developed, it is bound to care about its operation, today here to introduce you if you use the Elastic Stack to analyze Golang Memory usage of the program, c
Recently learning Golang, always want to experience the next concurrency in the end have more, will I big python strong how much. Learned the official tutorial HTTP service, using the Performance test Tool WRK test, found the result is very surprising ~WRK can refer to my blog, there are basic usage notes: http://blog.yuanzhaoyi.cn/2018/01/12/test.htmlTest command: wrk-t10-d1m-c200 http://127.0.0.1:8080Meaning: 10 thread, concurrent 200 link, lasts 1
Download Golang installation package: Http://www.golangtc.com/downloadHttps://code.google.com/p/go/downloads/list
Go1.4.darwin-amd64-osx10.8.pkg
go1.4 Mac OS X (x86 64-bit) PKG Installer
Set environment variable configuration goroot and Gopath:To create a directory under the Go folder: mkdir ~/go The following things put to. BASH_RC (or maybe. bash_profile or. zshrc) export Goroot=/usr/local/go export gopath= $HOME/ Goe
The type is described in the Golang document:
Named types, with type names such as int, int64, float, string, bool. There are also custom named types.Non-named type, no type name []string, map[string]string, [4]int. When comparing two named types, the type name must be the same; when comparing named and unnamed types, the underlying type is the same.
There are several forms of declaring variables:var a int//declaring a variable of type int
var b st
Suddenly want to go to the pit, and then try to on the company's new Mac on the tossinstallationby executing a command
Brew Search Go
See available The latest version is 1.7, it's him.
Brew install [email protected]
installed, follow the online tutorial directly in the terminal to perform go, the results prompt command does not exist Orz. All right, add your own name.Open a. Bash_profile and add:
Alias go= '/usr/local/cellar/go\@1.7/1.7.6/bin/go '
Execut
Requests
requestsis a requests library with the Golang language clone python version.Golang's own net/http function has been very well developed. It is as good as the Urllib series library in Python, but it is cumbersome to use.
Python version of the requests is simply an artifact, so many people are very admired.
So I started to wrap up a requests in the way Python requests thought.
Before I do, I want to be as compatible with Python as possible. But
Golang, which is the go language, has now been released to 1.4.1 version, the advantages of language features and Google behind the strong backers of what is not said. Golang's official offers a binary installation package on multiple platforms, unfortunately not a binary installation package that does not release the arm platform. The ARM platform is not able to download the binary installation package directly from the official website, fortunately
Today the sky just lit up, get up to see Golang 1.11 official release, with two important features: modules and webassembly.
This blog as long as the Modules,congjava turn Golang classmate is certainly the Golang package management is full of frustration, I have also introduced glide in the blog, and introduced DEP, and now we upgrade the introduction modules.
Wh
s :=[] int {1,2,3 }The direct initialization of the slice,[] means the slice type, and the {-I} initialization value is in turn a. Its cap=len=3
s := arr[:]Initializes the slice S, which is a reference to the array arr
s := arr[startIndex:endIndex]Create an element in Arr from subscript startindex to endIndex-1 as a new slice
s := arr[startIndex:]The default endindex will represent the last element to arr
s := arr[:endIndex]The default startindex will represent the start of t
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Write go for some time, although you can also complete some of the API and some features of the development. But it's a long way from being a real go developer.
Let's summarize the error handling in the Go language today. It is important for beginners. The Go language delay function defer acts as a try...catch and is very easy to use, but in practice, many gopher do not
It has been around a year since he started to work with golang. He has been studying it for himself in his spare time, but he is still mainly limited to grammar and language features. He hasn't used it to write practical projects yet.
There are many resources on the Internet to learn about golang syntax and language features. Later, I may write a rough article to compare the features of
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http://www.aqee.net/go/a-tour-of-go/#5
"Go language Golang" A tour of Go: #1 Hello world!"Go language Tutorial" A Tour of Go: #2 Installing an offline Golang"Go language Tutorial" A Tour of Go: #3 package Golang"Go language Tutorial" A Tour of Go: #4 import
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Uttered, from friends recommended Golang to the publication, the use of Golang has been more than 1 years. This kind of time is a rookie level experience for the old-C + + Java elders.
But as a new generation of language features is the actual combat. Golang this year, the project
This is a creation in
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http://golang.org/cmd/cgo/
CGO makes it possible to use C code in Golang.
Hello World
To have a more intuitive understanding, let's look at a simple example of creating a file Main.go:
Package Main/* #include
Execute the program:
Go Run main.go
The program executes and outputs hi (more examples can be seen $GOROOT/misc/cgo). We can us
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Go or Golang, is a open source, community supported, fast, consistent, scalable, productive language, and conceived by Goo Gle. Applications were build with it. Although Rob Pike had said that "... we expected C + + programmers to see Go as a alternative ...", but I really think of that: You PHP guys should learn golang! Let's
There are a lot of ways to start booting under Linux , and here I use the way I write shell commands in /etc/rc.local .Here is my actual operation as an example, many places need to crossing themselves to adjust the information Oh!1. In the /etc/rc.local file, add the script that you want to execute.For example, what I'm going to do now is a script that starts with the Golang project:Ficowlogpath= "/home/ficow/autolaunchlog.txt" #launch ficow ' s blog
Golang Installation and ConfigurationDownload the installation file, currently the latest version is 1.4.2,go1.4.2.linux-amd64.tar.gz.Extract the installation files to the specified directory:1 sudo tar -zxvf go1. 4.2. Linux-amd64. tar. Gz-c/usr/local/Edit the/etc/profile file to add an environment variable:Export Goroot=/usr/local/goexport gobin= $GOROOT/binexport path= $PATH: $GOBINexport gopath= $HOME/goprojRecompile the/etc/profile file and try to
The decision to discard the mouse starts, so be prepared to use VIM.So how to build Golang environment in VIM?With Git in vogue, it's so easy to build a vim environment.And when Vim is built, it's basically no different from the IDE.Highlighting, auto-completion, automatic formatting, viewing definition jumps, grammar detection, etc.
Improved Syntax highlighting with items such as Functions, Operators, Methods.
Auto Completion Support viagocode
The text of this text connection is: http://blog.csdn.net/freewebsys/article/details/46683645 reprint please must indicate the source!1, download Community version ideahttps://www.jetbrains.com/idea/download/2, download pluginHttps://plugins.jetbrains.com/plugin/5047?pr=ideaInstall the jar directly.3, create Golang ProjectTo set the SDK directory:Enter project name:Completion of entry project:Set Project properties: (This step is important, otherwise
Compiling the installation from source codeInstall the GCC tool, because golang some of the features are written in C, so building a Golang compilation is a mustInstall gawk GCC MakeInstall the mercurial tool to use the HG command to extract the source code of the GolangInstall MercurialPick and extract, if your network speed is slow, this step will take a little more timecd/usr/-R release https://go.googl
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