How to start golang

As an emerging high-performance programming language, Golang's startup method is different from traditional programming languages. Let's take a look at how Golang is started.

The startup of Golang is divided into compilation phase and running phase. In the compilation phase, Golang first compiles the code and generates an executable file or a statically linked library file. In the running phase, the executable file or statically linked library file is loaded into the memory by the operating system and the corresponding instructions are executed.

Specifically, during the compilation phase, Golang will compile the source code into a binary executable file. In Windows systems, the executable file has the suffix ".exe", but in Unix-like systems there is no suffix. In Linux systems, the executable files will be placed in the "/usr/bin" directory; in macOS systems, they will be placed in the "/usr/local/bin" directory. For statically linked library files, the generation method is basically the same as executable files, except that specific parameters "-buildmode=archive" or "-buildmode=c-archive" need to be added when compiling.

In the running phase, the startup method of Golang will vary according to the specific application scenario. The three main startup methods of Golang will be introduced below.

1. Executable file startup method
   This is the most commonly used startup method of Golang. In this startup method, the operating system directly calls the Golang executable file to start. The executable file can be run through the command line or directly double-clicked. The command line startup method requires entering the full path of the executable file in the terminal or adding it to the environment variable; directly double-clicking the executable file requires granting execution permission to the executable file.
2. Web application startup method
   Golang's Web application startup method refers to starting the application through the Web framework written in Golang. In this startup mode, Golang will start a web server, listen to a specific port number, and wait for requests from the client. When the client sends a request, Golang will process the request and return the response result.
3. Service deployment startup method
   This startup method refers to deploying Golang applications on the server through management tools such as systemd, supervisor or docker. In this startup mode, Golang will run in the background as a service and interact with the system's service management tool to ensure high reliability and high availability of the application.

In short, Golang’s startup method consists of a compilation phase and a running phase. Its startup method is flexible and portable, and supports a variety of startup methods for application scenarios, making it convenient for developers to perform operations according to different needs. choose.

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