发送邮件Golang代码

package main  import (      "net/smtp"      "fmt"      "strings"  )    /*   *  user : example@example.com login smtp server user   *  password: xxxxx login smtp server password   *  host: smtp.example.com:port   smtp.163.com:25   *  to: example@example.com;example1@163.com;example2@sina.com.cn;...   *  subject:The subject of mail   *  body: The content of mail   *  mailtyoe: mail type html or text   */    func SendMail(user, password, host, to, subject, body, mailtype string) error{      hp := strings.Split(host, ":")      auth := smtp.PlainAuth("", user, password, hp[0])      var content_type string      if mailtype == "html" {          content_type = "Content-Type: text/"+ mailtype + "; charset=UTF-8"      }else{          content_type = "Content-Type: text/plain" + "; charset=UTF-8"      }        msg := []byte("To: " + to + "\r\nFrom: " + user + "<"+ user +">\r\nSubject: " + subject + "\r\n" + content_type + "\r\n\r\n" + body)      send_to := strings.Split(to, ";")      err := smtp.SendMail(host, auth, user, send_to, msg)      return err  }    func main() {      user := "xxxx@163.com"      password := "xxxx"      host := "smtp.163.com:25"      to := "xxxx@gmail.com;ssssss@gmail.com"        subject := "Test send email by golang"        body := `      <html>      <body>      <h3>      "Test send email by golang"      </h3>      </body>      </html>      `      fmt.Println("send email")      err := SendMail(user, password, host, to, subject, body, "html")      if err != nil {          fmt.Println("send mail error!")          fmt.Println(err)      }else{          fmt.Println("send mail success!")      }    }
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发送邮件Golang代码
