Rebol 程式設計/ctx-emailer

CTX-EMAILER 是一個具有值的物件

   f-to            none!     none
   f-cc            none!     none
   f-from          none!     none
   f-subject       none!     none
   f-msg           none!     none
   lo              block!    length: 69
   clear-all       function! []
   submit-email    function! [/local sending user err]
   close-em        function! []