發送短信 : A job is waiting: A case study

  ______     ___     _    _    _    _    ______   
 /_   _//   / _ \\  | |  | || | || | || |      \\ 
   | ||    / //\ \\ | |/\| || | || | || |  --  // 
  _| ||   |  ___  |||  /\  || | \\_/ || |  --  \\ 
 /__//    |_||  |_|||_// \_||  \____//  |______// 
 `--`     `-`   `-` `-`   `-`   `---`   `------`