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

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發送短信 : QR code security authentication attendance system (part I)