Go Environment Variables: Complete Guide

In Go language, environment variables can be set using the os package. Here is an example code demonstrating how to set an environment variable:

package main

import (
    "os"
    "fmt"
)

func main() {
    // 设置环境变量
    os.Setenv("MY_ENV_VAR", "hello")

    // 获取环境变量的值
    myEnvVar := os.Getenv("MY_ENV_VAR")
    fmt.Println("MY_ENV_VAR:", myEnvVar)
}

In the code above, we are using the os.Setenv function to set an environment variable called MY_ENV_VAR.