整理代码，只在代码中使用的字符串由双引号改为单引号

Zframework/theme.lua

@@ -7,19 +7,19 @@ local themeColor={
 }
 
 function THEME.calculate(Y,M,D)
-	if not Y then Y,M,D=os.date("%Y"),os.date("%m"),os.date("%d")end
+	if not Y then Y,M,D=os.date('%Y'),os.date('%m'),os.date('%d')end
 	--Festival calculate within one statement
 	return
 		--Christmas
-		M=="12"and math.abs(D-25)<4 and
+		M=='12'and math.abs(D-25)<4 and
 		'xmas'or
 
 		--Birthday
-		M=="06"and D=="06"and
+		M=='06'and D=='06'and
 		'birth'or
 
 		--Spring festival
-		M<"03"and math.abs((({
+		M<'03'and math.abs((({
 			--Festival days. Jan 26=26, Feb 1=32, etc.
 			24,43,32,22,40,29,49,38,26,45,
 			34,23,41,31,50,39,28,47,36,25,
@@ -32,14 +32,14 @@ function THEME.calculate(Y,M,D)
 		'sprfes'or
 
 		--April fool's day
-		M=="04"and D=="01"and
+		M=='04'and D=='01'and
 		'fool'or
 
 		--Z day (Feb./Mar./Apr./May./June. 26)
-		D=="26"and(
-			(M=="01"or M=="02")and'zday1'or
-			(M=="03"or M=="04")and'zday2'or
-			(M=="05"or M=="06")and'zday3'
+		D=='26'and(
+			(M=='01'or M=='02')and'zday1'or
+			(M=='03'or M=='04')and'zday2'or
+			(M=='05'or M=='06')and'zday3'
 		)or
 
 		'classic'
@@ -48,7 +48,7 @@ end
 function THEME.set(theme)
 	if theme=='classic'then
 		BG.setDefault('space')
-		BGM.setDefault("space")
+		BGM.setDefault('space')
 	elseif theme=='xmas'then
 		BG.setDefault('snow')
 		BGM.setDefault('xmas')
@@ -58,20 +58,20 @@ function THEME.set(theme)
 		BGM.setDefault('magicblock')
 	elseif theme=='sprfes'then
 		BG.setDefault('firework')
-		BGM.setDefault("spring festival")
+		BGM.setDefault('spring festival')
 		MES.new('info',"★☆新年快乐☆★")
 	elseif theme=='zday1'then
 		BG.setDefault('lanterns')
-		BGM.setDefault("empty")
+		BGM.setDefault('empty')
 	elseif theme=='zday2'then
 		BG.setDefault('lanterns')
-		BGM.setDefault("overzero")
+		BGM.setDefault('overzero')
 	elseif theme=='zday3'then
 		BG.setDefault('lanterns')
-		BGM.setDefault("vacuum")
+		BGM.setDefault('vacuum')
 	elseif theme=='fool'then
 		BG.setDefault('blockrain')
-		BGM.setDefault("how feeling")
+		BGM.setDefault('how feeling')
 	else
 		return
 	end
@@ -87,7 +87,7 @@ function THEME.getThemeColor(theme)
 end
 
 function THEME.fresh()
-	THEME.set(THEME.calculate(os.date("%Y"),os.date("%m"),os.date("%d")))
+	THEME.set(THEME.calculate(os.date('%Y'),os.date('%m'),os.date('%d')))
 end
 
 return THEME