Windows下主循环无故占满CPU，因为Sleep(0)未实现，建议做如下修改

Cocos2d-x
#1

将Sleep(0)处，改为
else
{
LONGLONG DestTime = nLast.QuadPart + _animationInterval.QuadPart;
DWORD time_left = (DestTime - nNow.QuadPart) * 1000 / nFreq.QuadPart;
Sleep(time_left);
}
在97行
修改之后，CPU立即降低为2%