a := MpAccount{
		AppId:       "your_app_id",
		AccessToken: "38_XtyPcVUODHd8q3TNYPVGAZ2WNRx_nW4gnclObbv78tsEa1Y_bwdkLALDMEb4372wYqcC_CanjU9O0Zw4MqHiqxrIukk_G4ElAUxyv_ASOb0V2y8647cbxbYU-G8CbtnPdLNub8NrqtUVrSTnWAPaAGALPE",
        // ...
		ServerHost:  mp_api.ServerHostShangHai, // 选择离自己最近的服务主机
	}

    // 一个简单的只带access_token的GET API
	var list mp_api.MessageCustomServiceKfListRes
	if err := a.NewMpReq(mp_api.MessageCustomServiceKfList).Bind(&list).Do(); err != nil {
		t.Error(err)
	}
	log.Println(list)

    // 一个POST API
	var rs mp_api.AccountShortUrlRes
	err = a.NewMpReq(mp_api.AccountShortUrl).SendData(mp_api.AccountShortUrlData{
		Action:  mp_api.ShortUrlAction,
		LongUrl: "https://developers.weixin.qq.com/doc/offiaccount/Account_Management/URL_Shortener.html",
	}).Bind(&rs).Do()
	if err != nil {
		t.Error(err)
	}
	log.Println(rs)

    // 一个上传媒体文件的API
	err = a.NewMpReq(mp_api.MessageCustomServiceKfAccountUploadHeadImg).Query(mp_api.MessageCustomServiceKfAccountUploadHeadImgQuery{
		KfAccount: "1@1",
	}).Upload(resp.Body, "png")
	if err != nil {
		t.Error(err)
	}

mch := MchAccount{}
    
	var data mch_api.PayProfitSharingRes
	var body = mch_api.PayProfitSharingData{
		TransactionId: "4200000531202004307536721907",
		OutOrderNo:    "TSF_216144_1065_ye7DvHdSed",
	}
	_ = body.SerReceivers([]mch_api.PayProfitSharingReceiver{
		{
			Type:        "",
			Account:     "",
			Amount:      10,
			Description: "",
		},
	})

	err := mch.NewMchReq(mch_api.PayProfitSharing).
		Send(&body). // 注意：发送的数据需传指针，以便自动填充基础信息和签名
		UseHMacSign(). // 指定使用HMAC-SHA256
		UsePrivateCert(). // 指定使用私有证书通信
		Bind(&data).Do() // 传指针
	log.Println(err)
	log.Println(data)