快速入門：使用Go語言函數實現簡單的郵件發送功能

package main

import (
    "net/smtp"
)

func sendMail(to string, subject string, body string) error {
    // 使用smtp服务器地址和端口号进行连接
    smtpServer := "smtp.example.com"
    smtpPort := "587"
    auth := smtp.PlainAuth("", "your_email@example.com", "your_password", smtpServer)

    // 构建邮件内容
    message := []byte("To: " + to + "
" +
        "Subject: " + subject + "
" +
        "Content-Type: text/html; charset=UTF-8" + "
" +
        "
" +
        body)

    // 发送邮件
    err := smtp.SendMail(smtpServer+":"+smtpPort, auth, "your_email@example.com", []string{to}, message)
    if err != nil {
        return err
    }

    return nil
}

func main() {
    err := sendMail("recipient@example.com", "测试邮件", "<h1>这是一封测试邮件</h1>")
    if err != nil {
        fmt.Println("邮件发送失败:", err)
        return
    }

    fmt.Println("邮件发送成功！")
}