發送短信

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

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發送短信 : An Equivalent Definition for the Backwards Ito Integral