發送短信 : Scope and overview

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