diff --git a/Zframework/bgm.lua b/Zframework/bgm.lua
index 77430ed1..4776363a 100644
--- a/Zframework/bgm.lua
+++ b/Zframework/bgm.lua
@@ -52,7 +52,10 @@ function BGM.play(s)
 		BGM.playing=BGM.list[s]
 		BGM.suspend,BGM.nowPlay=s
 		return
-	elseif not s or not BGM.list[s]then
+	elseif not s then
+		return
+	elseif not BGM.list[s]then
+		LOG.print("Cannot find BGM: "..s,color.lRed)
 		return
 	end
 	if BGM.nowPlay~=s then
diff --git a/Zframework/init.lua b/Zframework/init.lua
index c03b4830..cbe8091a 100644
--- a/Zframework/init.lua
+++ b/Zframework/init.lua
@@ -16,6 +16,7 @@ WIDGET=	require("Zframework/widget")
 Widgets=require("Zframework/widgetList")
 LIGHT=	require("Zframework/light")
 SCN=	require("Zframework/scene")
+LOG=	require("Zframework/log")
 
 local ms=love.mouse
 local gc=love.graphics
@@ -190,6 +191,8 @@ function love.keypressed(i)
 	if devMode then
 		if i=="f5"then
 			DBP("DEBUG:")
+		elseif i=="f3"then
+			LOG.print("挂了.gif")
 		elseif i=="f8"then	devMode=nil	TEXT.show("DEBUG OFF",640,360,80,"fly",.8)
 		elseif i=="f9"then	devMode=1	TEXT.show("DEBUG 1",640,360,80,"fly",.8)
 		elseif i=="f10"then	devMode=2	TEXT.show("DEBUG 2",640,360,80,"fly",.8)
@@ -257,6 +260,7 @@ function love.joystickremoved(JS)
 	for i=1,#joysticks do
 		if joysticks[i]==JS then
 			rem(joysticks,i)
+			LOG.print("Joystick removed")
 			return
 		end
 	end
@@ -418,14 +422,7 @@ function love.run()
 
 	local waitTime=1/60
 	local frameTimeList={}
-	local debugMesList={}
-	local debugMesFloat=0
-	function PRINT(text,clr,time)--use this for print for debug in-game
-		if not clr then clr=color.white end
-		ins(debugMesList,{text=text,r=clr[1],g=clr[2],b=clr[3],time=time or 180})
-		ins(debugMesHistory,SCN.cur..": "..tostring(text))
-	end
-	
+
 	local lastFrame=Timer()
 	local lastFreshPow=lastFrame
 	local FCT=0--Framedraw counter
@@ -461,6 +458,7 @@ function love.run()
 		_=Tmr[SCN.cur]if _ then _(dt)end--Scene Updater
 		if SCN.swapping then SCN.swapUpdate()end--Scene swapping animation
 		WIDGET.update()--Widgets animation
+		LOG.update()
 
 		--DRAW
 		if not mini()then
@@ -527,27 +525,7 @@ function love.run()
 					elseif devMode==4 then WAIT(.5)
 					end
 				end
-				if debugMesList[1]then
-					setFont(20)
-					if debugMesFloat>0 then
-						debugMesFloat=int(debugMesFloat*.9)
-					end
-					for i=#debugMesList,1,-1 do
-						local M=debugMesList[i]
-						M.time=M.time-1
-						if M.time<=0 then
-							rem(debugMesList,i)
-							if not debugMesList[1]then
-								debugMesFloat=0
-							else
-								debugMesFloat=debugMesFloat+25
-							end
-						else
-							gc.setColor(M.r,M.g,M.b,min(M.time/26,1))
-							gc.print(M.text,10+(15-min(M.time,15))^1.5/3,25*i+debugMesFloat)
-						end
-					end
-				end
+				LOG.draw()
 
 				gc.present()
 			end
diff --git a/Zframework/log.lua b/Zframework/log.lua
new file mode 100644
index 00000000..e4486035
--- /dev/null
+++ b/Zframework/log.lua
@@ -0,0 +1,43 @@
+local gc=love.graphics
+local int,min=math.floor,math.min
+local ins,rem=table.insert,table.remove
+
+local debugMesList={}
+local debugMesFloat=0
+local LOG={}
+function LOG.print(text,clr)--use this for print for debug in-game
+	if not clr then clr=color.white end
+	ins(debugMesList,{text=text,r=clr[1],g=clr[2],b=clr[3],time=240})
+	ins(debugMesHistory,SCN.cur..": "..tostring(text))
+end
+function LOG.update()
+	if debugMesList[1]then
+		for i=#debugMesList,1,-1 do
+			local M=debugMesList[i]
+			M.time=M.time-1
+			if i==1 and M.time==0 then
+				rem(debugMesList,i)
+				if not debugMesList[1]then
+					debugMesFloat=0
+				else
+					debugMesFloat=debugMesFloat+25
+				end
+			end
+			if debugMesFloat>0 then
+				debugMesFloat=int(debugMesFloat*.9)
+			end
+		end
+	end
+end
+function LOG.draw()
+	if debugMesList[1]then
+		setFont(20)
+		for i=1,#debugMesList do
+			local M=debugMesList[i]
+			local t=M.time
+			gc.setColor(M.r,M.g,M.b,t>200 and int(t/3)%2 or min(t/26,1))
+			gc.print(M.text,10+(20-min(t,20))^1.5/4,25*i+debugMesFloat)
+		end
+	end
+end
+return LOG
\ No newline at end of file
diff --git a/parts/ai.lua b/parts/ai.lua
index 48fa913a..8453999f 100644
--- a/parts/ai.lua
+++ b/parts/ai.lua
@@ -39,8 +39,10 @@ local function loadCC()
 	end
 	if not f then
 		CCloader_filename[system]=nil
+		LOG.print("failed to load CC")
 		return
 	end
+	LOG.print("CC load successfully")
 	f()
 	BOT={
 		getConf=	cc.get_default_config	,--()options,weights
diff --git a/parts/scenes.lua b/parts/scenes.lua
index 2500398c..b9c87a58 100644
--- a/parts/scenes.lua
+++ b/parts/scenes.lua
@@ -252,6 +252,15 @@ do--p15
 				if checkBoard(b)then
 					S.state=2
 					S.time=Timer()-S.startTime
+					if S.time<1 then		LOG.print("不是人")
+					elseif S.time<2 then	LOG.print("还是人")
+					elseif S.time<3 then	LOG.print("神仙")
+					elseif S.time<5 then	LOG.print("太强了")
+					elseif S.time<7.5 then	LOG.print("很强")
+					elseif S.time<10 then	LOG.print("可以的")
+					elseif S.time<20 then	LOG.print("再接再厉")
+					elseif S.time<30 then	LOG.print("多加练习")
+					end
 					SFX.play("win")
 				end
 			end