Summarize some common golang settings

Go language is an increasingly popular programming language, mainly because of its simplicity, efficiency and ease of use. When using the Go language, we may need to make some settings. This article will introduce some common golang settings to help you better master this language.

1. Configure the Go language environment

Before using the Go language, you first need to configure the corresponding environment. Generally speaking, we need to do the following steps:

1. Download and install the Go language

We can download it on the official website https://golang.org/dl/ Download the corresponding Go language installation package, and then follow the installation prompts to successfully install the Go language.

2. Configure environment variables

After installing the Go language, we need to set the corresponding environment variables. Taking the Windows system as an example, we need to add two new variables to the system environment variables:

• GOROOT: points to the installation path of the Go language, such as C:\Go\
• GOPATH : Set to the path of the working directory, such as D:\Projects\go\

Then add the two paths %GOROOT%\bin and %GOPATH%\bin to the system PATH environment variable, like this We can run Go language related programs in any directory.

3. Installation package management tool

In the process of using Go language, we may need to download various packages and dependencies. In order to manage these packages more conveniently, we can install a package management tool, such as go get. The installation method is to enter the following command in the command line:

go get -u

2. Configure the editor/development environment

After configuring the Go language environment, we can Choose a suitable editor or development environment to write your code. Common editors are:

1. VS Code

Visual Studio Code is a lightweight, cross-platform code editor that supports multiple programming languages. Go language developers can use the officially provided Visual Studio Code extension, which provides some very useful functions, such as syntax highlighting, auto-completion, debugging, etc. After installing VS Code, just search for "Go" in the extension market to install the Go extension.

2. Goland

Goland is a Go language integrated development environment (IDE) developed by JetBrains. It provides some functions specifically tailored for the Go language. Including automatic code completion, syntax highlighting, debugging, refactoring, etc.

3. LiteIDE

LiteIDE is a simple, lightweight Go language integrated development environment based on Qt. It supports various Go language development functions, such as code auto-completion, code jump, syntax highlighting, etc.

3. Commonly used Go language settings

1. GOPROXY

When using the go get command to download a package, the official code repository is used by default. However, due to network reasons or some other problems, sometimes the download fails. In order to solve this problem, we can set the GOPROXY environment variable to an available proxy address to speed up the download of the package or solve the problem of download failure. For example, we can set the following environment variables:

export GOPROXY=https://goproxy.cn,direct

In this way, we can use the go get command to download the package faster And more stable.

2. GOMOD

Go language 1.11 and above uses GOMOD to manage dependencies. We can use the go mod init command to initialize a new Go module, and then use the go mod tidy command to automatically update our dependencies. If we need to disable Go modules, we can set the environment variable GO111MODULE to OFF.

3. GOOS/GOARCH

GOOS/GOARCH is an environment variable that can be used to specify the compilation target operating system and architecture. For example, we can use the following command to compile our program into a 64-bit executable file on the Windows system:

GOOS=windows GOARCH=amd64 go build main.go

At the same time, we You can also use the following parameters on the command line to compile:

go build -o output.exe -ldflags="-H windowsgui" main.go

In this way we can get a A Windows executable file for the command line window.

Summary

The above are some common golang settings, which can help us better use Go language to develop and write programs. I hope this article is helpful to all readers.

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