發送短信 : High level behavior for an autopilot enabled model aircraft

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