


Some instructions on downloading expansion packages using the go get command
The go get command can remotely pull or update code packages and their dependent packages with the help of code management tools, and automatically complete compilation and installation. The following section will introduce some knowledge about downloading expansion packs using the go get command from the go Getting Started Tutorial column.
1. The storage path of go get
The source code downloaded by go get is saved in $GOPATH/src. If it is not set, it will be included in $HOME/ by default. Go/src directory.
The downloaded package path maintains the same structure as the local path. For example, use the following command to download the specified package from github:
$ go get -u -v github.com/sqs/goreturns $
The downloaded source code will be saved in $GOPATH/src/github. com/sqs/goreturns.
We can also manually download the package to the corresponding path, and then execute the go get download command, such as:
$ git clone https://github.com/sqs/goreturns $GOPATH/src/github.com/sqs/ $ go get -u -v github.com/sqs/goreturns $
For tool packages that need to be compiled into binaries, you can use the go install command Compile and install the package. Binary files are stored in the $GOPATH/bin directory by default.
Note: The github package needs to be downloaded using the git clone command. It cannot be downloaded and decompressed directly in the browser, otherwise an error will be reported error: is not using a known version control system
2. github mirror
github warehouse https://github.com/golang is the official mirror warehouse of golang. All packages can be downloaded from the mirror repository. For example, to download the golang.org/x/tools tool package, you can download it from github.com/golang/tools.
$ git clone https://github.com/golang/tools $HOME/go/src/golang.org/x/ $
It is recommended to download the package to the $GOPATH/src/golang.org/x/ directory.
For more go language knowledge, please pay attention to the go language tutorial column on the php Chinese website.
The above is the detailed content of Some instructions on downloading expansion packages using the go get command. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



In Go, the function life cycle includes definition, loading, linking, initialization, calling and returning; variable scope is divided into function level and block level. Variables within a function are visible internally, while variables within a block are only visible within the block.

In Go, you can use regular expressions to match timestamps: compile a regular expression string, such as the one used to match ISO8601 timestamps: ^\d{4}-\d{2}-\d{2}T \d{2}:\d{2}:\d{2}(\.\d+)?(Z|[+-][0-9]{2}:[0-9]{2})$ . Use the regexp.MatchString function to check if a string matches a regular expression.

In Go, WebSocket messages can be sent using the gorilla/websocket package. Specific steps: Establish a WebSocket connection. Send a text message: Call WriteMessage(websocket.TextMessage,[]byte("Message")). Send a binary message: call WriteMessage(websocket.BinaryMessage,[]byte{1,2,3}).

Go and the Go language are different entities with different characteristics. Go (also known as Golang) is known for its concurrency, fast compilation speed, memory management, and cross-platform advantages. Disadvantages of the Go language include a less rich ecosystem than other languages, a stricter syntax, and a lack of dynamic typing.

Memory leaks can cause Go program memory to continuously increase by: closing resources that are no longer in use, such as files, network connections, and database connections. Use weak references to prevent memory leaks and target objects for garbage collection when they are no longer strongly referenced. Using go coroutine, the coroutine stack memory will be automatically released when exiting to avoid memory leaks.

View Go function documentation using the IDE: Hover the cursor over the function name. Press the hotkey (GoLand: Ctrl+Q; VSCode: After installing GoExtensionPack, F1 and select "Go:ShowDocumentation").

In Golang, error wrappers allow you to create new errors by appending contextual information to the original error. This can be used to unify the types of errors thrown by different libraries or components, simplifying debugging and error handling. The steps are as follows: Use the errors.Wrap function to wrap the original errors into new errors. The new error contains contextual information from the original error. Use fmt.Printf to output wrapped errors, providing more context and actionability. When handling different types of errors, use the errors.Wrap function to unify the error types.

Unit testing concurrent functions is critical as this helps ensure their correct behavior in a concurrent environment. Fundamental principles such as mutual exclusion, synchronization, and isolation must be considered when testing concurrent functions. Concurrent functions can be unit tested by simulating, testing race conditions, and verifying results.
