How to clear total email with this "github.com/emersion/go-imap"

[yangyile1990]

can not clear the trash.

I don't know how to do it.

package main

import (
	"fmt"

	"github.com/emersion/go-imap"
	imapID "github.com/emersion/go-imap-id"
	"github.com/emersion/go-imap/client"
	"github.com/yyle88/done"
	softjson "gitlab.yyle.com/golang/uvyyle.git/utils_encoding/utils_encoding_json/utils_neatjson/utils_neatjson_soft"
	"gitlab.yyle.com/golang/uvyyle.git/utils_os/utils_os_args"
)

// 代码参考：https://github.com/richelieu-yang/chimera/blob/288cbdd148693d4962ff7fc544fd3f3cf6ccba89/src/mailKit/imap.go
func main() {
	username, password := utils_os_args.GetArg2s()
	fmt.Println("username:", username)

	// (1) 连接服务器
	// 连接到IMAP服务器
	c, err := client.DialTLS("imap.163.com:993", nil)
	done.Done(err)
	defer func(c *client.Client) {
		_ = c.Logout()
	}(c)

	fmt.Println("state:", c.State())

	// (2) 登录邮箱
	// 登录到邮箱
	done.Done(c.Login(username, password))
	fmt.Println("state:", c.State())

	// (3) 添加ID信息（以防收取163邮箱报错(error): SELECT Unsafe Login. Please contact [e-mail] for help）
	// 设置客户端ID
	serverID, err := imapID.NewClient(c).ID(imapID.ID{
		imapID.FieldName:    "IMAPClient",
		imapID.FieldVersion: "3.1.0",
	})
	done.Done(err)
	fmt.Println("serverID:", softjson.NeatString(serverID))

	{
		// 选择收件箱
		mbox, err := c.Select("INBOX", false)
		done.Done(err)
		fmt.Println("inbox.name:", mbox.Name)

		// 获取收件箱中的所有邮件序列号
		seqSet := new(imap.SeqSet)
		seqSet.AddRange(1, mbox.Messages)
		fmt.Println("inbox_messages_index:", 1, mbox.Messages)

		if mbox.Messages <= 0 {
			//假如实际有邮件但提示没有邮件，有可能是你设置的仅仅“收取最近30天邮件”，因此稍微老点的邮件都收不到
			fmt.Println("收件箱里没有邮件")
			//return
		} else {
			storeItem := imap.FormatFlagsOp(imap.AddFlags, true)
			flags := []interface{}{imap.DeletedFlag}
			err = c.Store(seqSet, storeItem, flags, nil)
			done.Done(err)
			fmt.Println("收件箱已标记为删除-移动到垃圾箱")

			err = c.Expunge(nil)
			done.Done(err)
			fmt.Println("已删除的邮件已清空")
		}

		err = c.Expunge(nil)
		done.Done(err)
	}
	{
		// 选择垃圾箱
		mbox, err := c.Select("TRASH", false)
		done.Done(err)
		fmt.Println("inbox.name:", mbox.Name)
		fmt.Println("inbox_messages_index:", 1, mbox.Messages)

		var ch = make(chan uint32, mbox.Messages)
		for i := uint32(1); i <= mbox.Messages; i++ {
			ch <- i
		}

		fmt.Println(len(ch))
		err = c.Expunge(ch)
		done.Done(err)
		fmt.Println("已删除的邮件已清空")
	}
}