通过Golang形成YAML

package main

import (
    "fmt"
    "gopkg.in/yaml.v2"
    "io/ioutil"
)

type Config struct {
    Server   string `yaml:"server"`
    Port     int    `yaml:"port"`
    Database struct {
        Host     string `yaml:"host"`
        Username string `yaml:"username"`
        Password string `yaml:"password"`
    } `yaml:"database"`
}

func main() {
    config := Config{
        Server: "example.com",
        Port:   8080,
        Database: struct {
            Host     string `yaml:"host"`
            Username string `yaml:"username"`
            Password string `yaml:"password"`
        }{
            Host:     "localhost",
            Username: "admin",
            Password: "password",
        },
    }

    data, err := yaml.Marshal(&config)
    if err != nil {
        panic(err)
    }

    err = ioutil.WriteFile("config.yaml", data, 0644)
    if err != nil {
        panic(err)
    }

    fmt.Println("YAML file generated successfully.")
}