發送短信 : Security analysis and resilient control of discrete-event systems

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