發送短信 : Design and development of a smart supermarket system (A)

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