發送短信 : Predicting the vulnerability to sleep deprivation

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 /  ___||   / _ \\  | || | ||  /_   _// | || | || 
| // __    / //\ \\ | '--' ||   -| ||-  | || | || 
| \\_\ || |  ___  ||| .--. ||   _| ||_  | \\_/ || 
 \____//  |_||  |_|||_|| |_||  /_____//  \____//  
  `---`   `-`   `-` `-`  `-`   `-----`    `---`