發送短信

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

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發送短信 : Developing a Game-Based Instructional Manipulative for Permutation and Combination