整理全局函数名以及库的require方法

parts/modes/rhythm_u.lua

@@ -72,7 +72,7 @@ return{
 		gc.circle("line",69,200,30+45*beat)
 	end,
 	score=function(P)return{math.min(P.stat.row,200),P.stat.time}end,
-	scoreDisp=function(D)return D[1].." Lines   "..toTime(D[2])end,
+	scoreDisp=function(D)return D[1].." Lines   "..TIMESTR(D[2])end,
 	comp=function(a,b)return a[1]>b[1]or a[1]==b[1]and a[2]<b[2]end,
 	getRank=function(P)
 		local L=P.stat.row