Golang is suitable for cloud computing. The Go language is mainly used for server-side development. It is positioned to develop "large-scale software". It is suitable for many programmers to develop large-scale software together. It has a long development cycle and supports cloud computing network services. The Go language can be used in the field of in-memory databases and cloud platforms. Many foreign cloud platforms are developed using Go, such as some components of CloudFoundy and the apcera cloud platform developed by the former technical director of VMare.
The operating environment of this tutorial: Windows 7 system, GO version 1.18, Dell G3 computer.
Golang is a statically strongly typed, compiled, concurrent programming language with garbage collection capabilities. As an open source programming language, Go makes it easy to build reliable, simple and efficient software.
Go language is mainly used for server-side development. It is positioned to develop "large-scale software". It is suitable for many programmers to develop large-scale software together. It has a long development cycle and supports cloud computing networks. Serve. The Go language allows programmers to develop quickly, and as the software continues to grow, it makes it easier for programmers to maintain and modify it. It combines the efficiency of traditional compiled languages with the ease of use and expressiveness of scripting languages.
As a server programming language, Go language is very suitable for processing logs, data packaging, virtual machine processing, file systems, distributed systems, database agents, etc.; in terms of network programming, Go language is widely used in Web applications and API applications. , download applications, etc.; in addition, the Go language can also be used in the field of memory databases and cloud platforms. Currently, many foreign cloud platforms are developed using Go.
Applicable fields:
1. Server programming. If you used C or C to do those things before, it is very suitable to use Go to do them, such as processing logs and data. Packaging, virtual machine processing, file systems, etc.
2. Distributed systems, database agents, middleware, etc., such as Etcd.
3. Network programming, this area is currently the most widely used, including Web applications, API applications, download applications, and Go’s built-in net/http package basically implements all the network functions we usually use.
4. Database operation
5. Cloud platform. Currently, many foreign cloud platforms are using Go development. Some components of CloudFoundy and the former VMare technical director came out to develop the apcera cloud platform.
6. Development of game server.
Which big companies are using Go language:
1, Google
No need to introduce much. As a company that develops the Go language, it does its part. Google has many excellent projects based on Go, such as: https://github.com/kubernetes/kubernetes. You can also view more Google's Go open source projects on Github at https://github.com/google/.
2. Facebook
Facebook is also used. For this reason, they have also established an open source organization facebookgo on Github. You can visit and view facebook through https://github.com/facebookgo Open source projects, such as the famous grace for smooth upgrades.
3. Tencent
As a large domestic company, Tencent still dares to try, especially in the area of Docker containerization. They have implemented tens of thousands of Docker units in 15 years. Specifically, You can refer to http://www.infoq.com/cn/articles/tencent-millions-scale-docker-application-practice
4, Baidu
The currently known use of Baidu is On the operation and maintenance side, it is a BFE project of Baidu Operations and Maintenance, which is responsible for the access of front-end traffic. Their person in charge shared something in 2016. You can take a look at this http://www.infoq.com/cn/presentations/application-of-golang-in-baidu-frontend
5, Ali
Alibaba’s specific projects are not clear, but I heard that its system department, CDN, etc. are recruiting people for Go.
6, Jingdong
Jingdong Cloud message push system, cloud storage, and Jingdong Mall are all developed using Go.
7. Xiaomi
Xiaomi’s support for Golang is nothing more than the open source operation and maintenance monitoring system, which is http://open-falcon.com/
In addition, Xiaomi Interactive Entertainment, Xiaomi Mall, Xiaomi Video, Xiaomi Ecological Chain and other teams are all using Golang.
8, 360
360 also uses Golang a lot. One is the open source log search system Poseidon, hosted on Github, https://github.com/Qihoo360/poseidon
There are many other companies that we will not list here one by one, from which we can also know the popularity of the Go language.
Why so many people prefer Go language:
In addition to the above-mentioned industry giants, Go language is also popular among many domestic cloud startups, such as DaoCloud. So why did they choose Go? What advantages does it have compared to applications in other languages?
1. Learning curve
It includes C-like syntax, GC built-in and engineering tools. This is very important because the Go language is easy to learn, so an ordinary college student can write a usable, high-performance application in one week. Everyone in China pursues speed, which is one of the reasons why Go is so popular in China.
2. Efficiency
Go has an operating efficiency close to C and a development efficiency close to PHP, which greatly supports everyone's pursuit of speed.
3. Come from a well-known family and have pure blood
The reason why Go comes from a well-known family is because we know that the Go language comes from Google. Needless to say, this company's popularity and strength in the industry go without saying. Google has gathered a group of talented people to launch a new programming language in a situation where various programming languages are competing for hegemony. Naturally, it has its own strategic considerations. And judging from the development trend of the Go language, Google still attaches great importance to its new darling. Go naturally has a good development future. If we look at the main creator of the Go language, we can see that he has pure blood.
4. Free and efficient: the idea of combination, non-intrusive interface
The Go language can be said to be the perfect fusion of development efficiency and operating efficiency. , native support for concurrent programming. The Go language supports all current programming paradigms, including procedural programming, object-oriented programming, and functional programming. Programmers can get what they need, combine them freely, and play whatever they want.
5. Powerful standard library
This includes Internet applications, system programming and network programming. The standard libraries in Go are basically very stable, especially the three libraries I mentioned here, the network layer and system layer libraries are very practical.
6. Convenient deployment: binary files, Copy deployment
I believe this is the biggest reason why many people choose Go. Because deployment is so convenient, many people now use Go to develop and operate. dimension program.
7. Simple concurrency
It includes mental-reducing concurrency and simple data synchronization. I think this is the biggest feature of Go. The reason why it is so difficult to write correct concurrent, fault-tolerant and scalable programs is because we use the wrong tools and wrong abstractions. Go can be said to do this quite easily.
8. Stability
Go has powerful compilation checks, strict coding standards and complete software life cycle tools. It has strong stability, and stability trumps everything else. So why is Go more stable than other programs? This is because Go provides tools for each aspect of the software life cycle (development, testing, deployment, maintenance, etc.), such as go tool, gofmt, go test.
Here is a quote from a classmate on Zhihu who commented on Go: When I was first preparing to go online, I was actually quite nervous. After all, if something goes wrong, not only would I have to take the blame, but I would also lose face. Fortunately, the results are pretty good. There has not been a single sudden BUG since it went online, which not only reduces the difficulty of operation and maintenance, but also reduces the load on the machine. I believe this is also the reaction of most people after using Go.
【Related recommendations: Go video tutorial, Programming teaching】
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