代码规范：把所有的tab换成空格

parts/modes/backfire_n.lua

@@ -1,38 +1,38 @@
 return{
-	color=COLOR.green,
-	env={
-		drop=30,lock=60,
-		dropPiece=function(P)
-			if P.lastPiece.atk>0 then
-				P:receive(nil,P.lastPiece.atk,120,generateLine(P.holeRND:random(10)))
-			end
-			if P.stat.atk>=100 then
-				P:win('finish')
-			end
-		end,
-		bg='tunnel',bgm='echo',
-	},
-	mesDisp=function(P)
-		setFont(60)
-		mStr(P.stat.atk,63,280)
-		mText(drawableText.atk,63,350)
-	end,
-	score=function(P)return{math.min(math.floor(P.stat.atk),100),P.stat.time}end,
-	scoreDisp=function(D)return D[1].." Attack  "..STRING.time(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.atk
-		if L>=100 then
-			local T=P.stat.time
-			return
-			T<45 and 5 or
-			T<60 and 4 or
-			T<90 and 3 or
-			T<120 and 2 or
-			1
-		else
-			return
-			L>=50 and 0
-		end
-	end,
+    color=COLOR.green,
+    env={
+        drop=30,lock=60,
+        dropPiece=function(P)
+            if P.lastPiece.atk>0 then
+                P:receive(nil,P.lastPiece.atk,120,generateLine(P.holeRND:random(10)))
+            end
+            if P.stat.atk>=100 then
+                P:win('finish')
+            end
+        end,
+        bg='tunnel',bgm='echo',
+    },
+    mesDisp=function(P)
+        setFont(60)
+        mStr(P.stat.atk,63,280)
+        mText(drawableText.atk,63,350)
+    end,
+    score=function(P)return{math.min(math.floor(P.stat.atk),100),P.stat.time}end,
+    scoreDisp=function(D)return D[1].." Attack  "..STRING.time(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.atk
+        if L>=100 then
+            local T=P.stat.time
+            return
+            T<45 and 5 or
+            T<60 and 4 or
+            T<90 and 3 or
+            T<120 and 2 or
+            1
+        else
+            return
+            L>=50 and 0
+        end
+    end,
 }