發送短信 : Smart collection & delivery routing problem

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