CodePudding user response:
C/S desktop application software?The simplest way is the software must be connected to the Internet to use
Then you design a website, desktop application request your website interface,
First write down hardware parameters, such as network card MAC address, in a database,
The next request, determine what time do you have any overdue,
Of course, to do very perfect, still have to encrypt, confusion,
CodePudding user response:
See you know is superior, but I don't understand, can not contact friends can do now, help me to do?