整理代码

parts/scenes/app_2048.lua

@@ -261,8 +261,8 @@ local moveFunc={
     right=moveRight,
 }
 local arrows={
-    up="↑",down="↓",left="←",right="→",
-    ["↑"]="up",["↓"]="down",["←"]="left",["→"]="right",
+    up='↑',down='↓',left='←',right='→',
+    ['↑']='up',['↓']='down',['←']='left',['→']='right',
 }
 local function setFocus(n)
     if state~=2 then

parts/scenes/custom_field.lua

@@ -23,7 +23,7 @@ local function isEmpty(L)
     return true
 end
 local penKey={
-    ["1"]=1,["2"]=2,["3"]=3,["4"]=4,["5"]=5,["6"]=6,["7"]=7,["8"]=8,
+    ['1']=1,['2']=2,['3']=3,['4']=4,['5']=5,['6']=6,['7']=7,['8']=8,
     q=9,w=10,e=11,r=12,t=13,y=14,u=15,i=16,
     a=17,s=18,d=19,f=20,g=21,h=22,j=23,k=24,
     z=0,x=-1,