Does golang need to build?

When using Golang to develop programs, there are often questions about whether compilation (build) is required. This article will introduce whether Golang needs to be compiled from aspects such as Golang's language features, compilation process and practical applications.

Golang’s language features

Golang is a compiled language, which means that we need to compile the Golang code and convert it into machine language before it can run on the target platform. Each operating system and CPU architecture needs to compile and generate corresponding binaries, which is why when using Golang for cross-platform development, it needs to be recompiled on the target platform.

However, Golang uses static linking during the compilation process, which makes the binary file size of Golang relatively small, and the application only needs one executable file to execute in the running environment. Like other languages, the dependent library files are packaged together. This method facilitates program deployment and delivery, and also reduces problems caused by incompatible library file versions.

Compilation process of Golang

When using Golang to develop programs, the common compilation command is go build. This command will compile all referenced packages in the current directory and link them into an executable file or a dynamic link library. For example:

$ cd /path/to/my/project
$ go build main.go

The above command will compile main.go. If main.go depends on other packages, it will be compiled together with these packages to generate the executable file a.out.

Similar to other languages, Golang also supports cross-compilation. Using cross-compilation, you can compile multiple different target platforms on one machine. You only need to specify the corresponding compilation parameters. For example:

$ GOOS=windows GOARCH=amd64 go build main.go

The above command will compile and generate a Windows x64 program on Mac OS X system.

Golang application scenarios

Golang was originally designed to handle large-scale concurrent network server programs, so it has extensive applications in network programming, high-performance computing, cloud computing, blockchain and other fields. Applications. Compared with other languages, Golang is more suitable for development in distributed situations and can easily implement microservice architecture.

In actual use, Golang's compilation command go build is usually used to compile Golang code into an executable program or dynamic link library. If you want to run your code on a different operating system or CPU architecture, you can compile it using the cross-compile command. At the same time, due to the characteristics of Golang, only one executable file is needed to run on the target platform.

Conclusion

Golang is a compiled language and requires compilation. However, Golang uses static linking during the compilation process, the binary file size is relatively small, and the application only needs one executable file to execute in the running environment. In practical applications, Golang's compilation command is usually used to compile the code into an executable program or dynamic link library, and cross-compilation commands can be used for compilation to facilitate running the program on different operating systems or CPU architectures.

The above is the detailed content of Does golang need to build?. For more information, please follow other related articles on the PHP Chinese website!