how to learn golang

Conclusion:golang不支持解析string然后执行。golang的反射机制只能存在于已经存在的对象上面。It is not known whether the subsequent versions are planned, and now only the registration can be loaded, and then a reflection similar to the Java Factory pattern is implemented.code example: T: = reflect. ValueOf (human{}). Type () // H: = reflect. New (t). Elem () // New return address pointer h: = reflect. New (t). Interface () FMT. Println (h) hh:= H. (*Human) FMT

Golang Study Notes [5] integer and golang Study Notes integer Golang has many integer classes, but generally it is better to use int or uintt, Package mainimport ("fmt" "unsafe") func main () {var i1 int8 = 1 // 1 bytevar i2 int16 = 2 // 2 bytevar i3 = 3 // 4 bytevar i4 int64 = 4 // 8 bytevar i5 int = 5 // 32-bit: 4 64-bit: 8var i6 uint8 = 1 // 1 bytevar i7 ui

Golang and php calculate the distance between two latitude and longitude. golang latitude and longitude This article describes how golang and php calculate the distance between two latitudes. We will share this with you for your reference. The details are as follows: Golang version:Copy codeThe Code is as follows: pack

2017 Golang, Python, PHP, C + +, C, Java, Nodejs performance comparisonI in Php/c++/go/py, whim, want to make a simple comparison of the recent mainstream programming language performance, as to how to compare, still have to use the Magic Fibonacci algorithm. It may be more common or fun. Okay, talk is cheap, show me your code! Turn on your Mac, open Clion and start coding!1. The first is go, because I personally recently used, feel very goodPackage M

1.golang generate c-shared type to soSet up folder Hello, create the Main.go file with the contents as followsPackage Mainimport "C" Func Main () {}//export hellofunc hello () string {return "Hello"}//export Testfunc Test () {println ("E Xport Test ")}Generate so script file, command line:Genetic libhello.so libhello.h File2.c Language Call libhello.soCopy the libhello.so to the/usr/lib for runningCreate a new folder Hello_test, copy the libhello.so l

difficult, no one, talk about the elegance of technology first is not reliable, and then look at the mailing list, Golang activity is significantly higher than Erlang, see the weekend Golang discussion HTTP/ www.douban.com/photos/photo/1683652416/, the basic approximation of Ruby, more importantly, I do not worry about Golang talent, because as long as familiar

mother Go-routine (all the other go-routine are declared and created within it). So, when the mother Go-routine execution ends, even if the other go-routines are executed halfway through, they will be killed and then returned. We now know what Go-routines is. Next, let's look at closures . If you have not previously learned about closures in Python or JavaScript, you can now learn about them in Golang.

is significantly higher than Erlang, Look at the weekend Golang discussion.http://www.douban.com/photos/photo/1683652416/ , the basic approximation of Ruby, and more importantly, I do not worry about Golang talent, because as long as the familiar with python/c/ruby/or C + +, the basic can achieve a half-day introduction, after that can be crackling edge search data side work, although there is enough depth

discussion HTTP/ www.douban.com/photos/photo/1683652416/, the basic approximation of Ruby, more importantly, I do not worry about Golang talent, because as long as familiar with python/c/ruby/or C + +, basic can achieve half a day to get started, After that can be crackling edge search data side work, although there is enough depth, but the threshold is extremely flat, engineering staff can also reuse a lot of existing knowledge. Erlang in this point

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

Golang File Reading implementation method, golang File ReadingRead files Put the Read file in file/test: that is, the test file under the file package. Write more files in it. Method 1: Use ioutil. ReadFile to directly read from the file to [] byte func Read0() (string){ f, err := ioutil.ReadFile("file/test") if err != nil { fmt.Println("read fail", err) } return string(f)} Method 2: rea

the original code when expanding the function. Regardless of the software refactoring level, when the new recruits take over the boss's code, I think the most headache is to increase demand, because you do not know what to change the code to bring a hidden BUG.We always ideal can use the "plug-in" thinking to adapt to demand, write a good framework, and then classify, each of the abstract role is a large container, and then each time to the container plug into a plug-in, to a demand, do a plug-

This is a creation in Article, where the information may have evolved or changed. Gojson is a Golang package that quickly parses JSON data, which you can use to quickly find data in JSON Installation go get github.com/widuu/gojson Introduction to use Structure type Js struct { data interface{}} (1) func Json(data) *Js data is a string type, initializes the JS structure, parses the JSON and returnJs.data json := `{"from":"en","to":"zh"}`

This is a creation in Article, where the information may have evolved or changed. As introduced in the overview post, a Go module was a collection of packages versioned as a unit, along with a go.mod file Listing other required modules. The move to modules is a opportunity for us to revisit and fix many details of how the GO command manages source code. The current go get model would be is about ten years old when we retire it in favor of modules. We need to make sure that the module design woul

/ruby/or C + +, Basic can achieve a half-day introduction, then can be crackling edge search data side work, although there is enough depth, but the threshold is extremely flat, engineering staff can also reuse a lot of knowledge. Erlang in this point is actually related to the 1th mishap, most people learn a week is not mind, not everyone's abstract thinking and world view are the same good, so functional programming although not more than the impera

This is a created article in which the information may have evolved or changed. 1. Download: Golang installation package: https://code.google.com/p/go/downloads/detail?name=go1.1.2.darwin-amd64.pkgcan=2q= Eclipse Tool: HTTP://WWW.ECLIPSE.ORG/DOWNLOADS/PACKAGES/ECLIPSE-IDE-JAVA-DEVELOPERS/KEPLERSR1 (I'm under the Java edition) 2. Install GO1.1.2.DARWIN-AMD64.PKG, the directory will be automatically created on Mac OS after installation is com

This is a creation in Article, where the information may have evolved or changed. The practice of writing this problem with Golang is completely different, using the Gorutine, channel, writing a very interesting Title Description: leetcode 566. Reshape The Matrix in MATLAB, there is a very useful function called ' reshape ', which can reshape a Matrix int o A new one with different size and keep its original data. You ' re given a matrix represe

. 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. Reference: Http://devs.cloudimmunity.com/gotchas-and-common-mistakes-in-go-golang/index.html#closure_for_it_ VARs http://studygolang.com/articles/7994 http://studygolang.com/articles/4738 http://blog.csdn.net/ htyu_0203_39/article/details/50985187 http://studygolang.com/articles/356 http://w

This is a created article in which the information may have evolved or changed. Win7 (64-bit) under Eclipse configuration Golang using third-party libraries 1. Install the Windows Client for git: Git's Windows client download address (required can be found directly from the resources I upload): http://code.google.com/p/msysgit/downloads/list?q=full+installer+official+git Installation process all the way next, there is a step to note, this step