hch
2018-08-23 56c62d592031ccce21c63174d7ffb755a6db0bd6
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#lostTick Íæ¼Ò±¾´Î´ðÌâËùÓõÄʱ¼ä ºÁÃë
(
   int(max(5,min(25,(18*(10 * 1000 -  lostTick)/1000)/5)))
  
)