1 修复错误的重复随机，防范多线程报错

hch

2018-09-11 af244414c0e1ca1e5d5dd22a2e07f5aaa96a33e6

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#lostTick Íæ¼Ò±¾´Î´ðÌâËùÓõÄʱ¼ä ºÁÃë 
( 
   int(max(5,min(25,(18*(10 * 1000 -  lostTick)/1000)/5))) 
   
)