What libraries are there in go language?

Go language has fmt library, net/http library, time library, encoding/json library, database/sql library, log library, testing library, gin library, gorm library, viper library and go-crypto library. 1. The fmt library provides basic functions such as formatting strings and input and output; 2. The net/http library provides HTTP server and client functions and can be used to build Web applications and APIs.

The operating environment of this tutorial: windows10 system, golang1.20.1 version, DELL G3 computer.

Go language is a fast, concise, and efficient programming language that is widely used in cloud computing and distributed system development. In order to facilitate developers to quickly build projects, Go language provides a wealth of standard libraries and third-party libraries. This article will introduce some commonly used Go language libraries.

1. fmt library: The fmt library is part of the Go language standard library and provides basic functions such as formatting strings and input and output. Through the fmt library, we can perform simple formatted output, read user input, error output and other operations.

2. net/http library: The net/http library is the core library in the Go language standard library for building HTTP services. It provides HTTP server and client functionality and can be used to build web applications and APIs.

3. Time library: The time library provides basic time operation functions, including time formatting, parsing, calculation, etc. We can use the time library to obtain the current time, delayed execution of tasks, scheduled tasks, etc.

4. encoding/json library: The encoding/json library provides JSON encoding and decoding functions. We can use this library to convert Go language data structures into JSON format data, or parse JSON format data into Go language data structures.

5. database/sql library: The database/sql library is a library in the Go language standard library for operating relational databases. It provides a unified API that can easily connect, query, insert, update and delete data in the database. At the same time, the database/sql library also supports advanced features such as connection pooling.

6. Log library: The log library is used to record log information and is part of the Go language standard library. We can use the log library to output various levels of log information to facilitate debugging and tracking the running status of the program.

7. Testing library: The testing library is a library used to write unit tests in the Go language standard library. It provides a series of functions and methods that make it easy to write and execute various types of test cases.

In addition to the above standard libraries, the Go language also has many excellent third-party libraries that can meet various specific needs, such as:

1. gin library: gin is a light A massive web framework that can quickly build high-performance web applications.

2. gorm library: gorm is an ORM (Object Relational Mapping) library that can easily operate the database and supports mainstream relational databases.

3. viper library: The viper library can be used to read and parse configuration files to facilitate configuration management.

4. go-crypto library: The go-crypto library provides many common cryptographic operation functions, such as hashing, encryption, decryption, etc.

In short, the Go language has a rich standard library and third-party libraries, covering all aspects from basic functions to advanced functions. Developers can choose appropriate libraries according to their own needs, improve development efficiency, and speed up the project development process. At the same time, by learning and using these libraries, you can better understand and master the programming features and techniques of the Go language. .

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