## 要件

To use this extension, Lua 5.1 will need to be installed, available on the » Lua homepage.

To make full use of the timer features, LuaSandbox should be installed on Linux.

If FreeBSD or Mac OS X is used, only real (wall-clock) time is supported, the functions purporting to return CPU time will actually return wall clock time.

If Windows is used, no timer functions will be supported. The time limits will be inoperable.

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