Let’s talk about two ways to query golang packages

In Go language, package (Package) is regarded as the basic unit of code, which is similar to many other programming languages. Code contained in a package can be considered to belong to the same logical unit.

The Go language standard library provides a very wide range of functions, but in specific scenarios, we may need some extension packages to complete the work. At this time, you need to perform package query in Go language.

In the Go language, there are two ways to query packages: local query and online query. Let’s take a look at these two methods.

Local query

In the Go language, local query is a way to query packages on the local machine. Mainly used to extend functions beyond the Go language standard library. In the local query, we need to specify the path to the local package.

For example, if we want to query a package named "my_pack" on the local machine and the package path is "\Users\myuser\packages", we can use the following command:

go list -f {{.Dir}} my_pack

This command Will return the path to the "my_pack" package. Use this command to conveniently find the package path on your local machine.

Online query

In the Go language, using online query can help us find and download packages suitable for our project. We can use the go get command to query and download packages online.

For example, if we want to query the package named "my_pack", we can use the following command:

go get github.com/myuser/my_pack

This command will find and download the "my_pack" package to the Go language installation on the local machine path. You can use this command to conveniently find and install packages online. We still need to explicitly reference the package in the project.

Summary

Local query and online query are the two main ways of package query in Go language. In local query, we need to know the path of the package to query the local package. And online query can help us find and download packages suitable for our projects. No matter which query method is used, it is very convenient and easy to use.

When using package query, we need to understand the naming rules of the package and how to use the functions in the package. At the same time, we also need to access relevant documentation and community resources to understand and understand more information and examples about the package.

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