code: func NewTransferCustomer(KfAccount string) *TransferCustomer {
  	tc := new(TransferCustomer)
  	if KfAccount != "" {
  		transInfo := new(TransInfo)
  		transInfo.KfAccount = KfAccount
  		tc.TransInfo = transInfo
  	}
  	return tc
  }
docs: //NewTransferCustomer 实例化