發送短信 : Technology-enhanced learning (TEL) of finite state machines (FSMs)

             ___      _  __     ___      ______  
  ____      / _ \\   | |/ //   / _ \\   /_____// 
 |    \\   / //\ \\  | ' //   / //\ \\  `____ `  
 | [] ||  |  ___  || | . \\  |  ___  || /___//   
 |  __//  |_||  |_|| |_|\_\\ |_||  |_|| `__ `    
 |_|`-`   `-`   `-`  `-` --` `-`   `-`  /_//     
 `-`                                    `-`