static void Limit()
{
int i = 0;
int okCount = 0;
int noCount = 0;
Stopwatch w = new Stopwatch();
w.Start();
while (i < 1000000)
{
var ret = l.IsContinue();
if (ret)
{
okCount++;
}
else
{
noCount++;
}
i++;
}
w.Stop();
Console.WriteLine($"共用{w.ElapsedMilliseconds},允许：{okCount}, 拦截：{noCount}");
}
