Some objects and classes may not be cleaned up because they assume that once the program exits, the virtual machine will exit too, and everything will be cleaned up automatically.
它们可能不去清除一些对象和类，因为它们假定当程序存在时，虚拟机也存在，所有对象和类都将被自动清除。
If the -t option is not specified, the program will handle exactly one connection and then exit.
如果没有指定- t选项，程序将只处理一个连接，处理完成后就退出。
Modify the above program such that it will ask for 'Do you want to calculate again (y/n), if you say 'y', it'll again ask the parameters. If 'n', it'll exit.
修改上面的程序，在显示结果完成之后附加询问'Doyouwanttocalculateagain (y/n)，如果回答'y'，则要求重新输入参数，如果回答'n'，程序退出(Do while 循环)。
If this program exits with anything other than exit code 100, it will be automatically restarted.
如果此程序退出时的退出码不是100，程序将自动重启。
If there is a fencepost error (running off the end of an array), your program will immediately exit with a protection error.
如果存在fencepost错误（超过数组末尾运行），程序就会产生保护错误，并立即结束。
If you exit the program without a single normal circumstances (for example: the forced shutdown, etc.), it will automatically run the next restart and lock screen (the same as the previous password).
如果在没有正常退出程序单情况下(例如：强行关机等)，下次重启就会自动运行并锁屏(密码与上次相同)。
If you exit the program without a single normal circumstances (for example: the forced shutdown, etc.), it will automatically run the next restart and lock screen (the same as the previous password).
如果在没有正常退出程序单情况下(例如：强行关机等)，下次重启就会自动运行并锁屏(密码与上次相同)。
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