diff --git a/modules/commons.lua b/modules/commons.lua
index 410f71f..49a0531 100644
--- a/modules/commons.lua
+++ b/modules/commons.lua
@@ -4,7 +4,7 @@
 --- DateTime: 2020/10/24 14:13
 ---
 local console = require("hs.console")
-version = "v0.1.4"
+version = "v0.1.8"
 configPath= "~/.hammerspoon/data/config.json"
 initConfigPath= "~/.hammerspoon/data/initConfig.json"
 config = {}
@@ -284,7 +284,7 @@ hs.hotkey.bind(hyperCmd, "P", function ()
     openColorDialog()
 end)
 
---设置颜色拾取快键键
-hs.hotkey.bind(hyperCmd, "C", function ()
+--设置咖啡因开关
+hs.hotkey.bind(hyperCmd, "S", function ()
     switchCaffeine()
 end)
\ No newline at end of file
diff --git a/modules/jsonFormat.lua b/modules/jsonFormat.lua
index b432948..0375097 100644
--- a/modules/jsonFormat.lua
+++ b/modules/jsonFormat.lua
@@ -6,13 +6,6 @@
 --
 --
 
---- KSheet:hide()
---- Method
---- Hide the cheatsheet view.
-function hide(time)
-    sheetView:hide(time)
-end
-
 function init()
     local cscreen = hs.screen.mainScreen()
     local cres = cscreen:fullFrame()
@@ -20,9 +13,9 @@ function init()
         x = cres.x+cres.w*0.15/2,
         y = cres.y+cres.h*0.25/2,
         w = cres.w*0.85,
-        h = cres.h*0.75
+        h = cres.h*1.0
     })
-    sheetView:windowTitle("CheatSheets")
+    sheetView:windowTitle("JsonFormat")
     sheetView:windowStyle("utility")
     sheetView:titleVisibility("hidden")
     sheetView:allowGestures(true)
@@ -35,17 +28,25 @@ function init()
     sheetView:shadow(true)
     sheetView:alpha(1)
     sheetView:level(hs.drawing.windowLevels.mainMenu)
+    sheetView:url("https://i.sugood.xyz/pages/jsonweb.html")
+end
+
+--- KSheet:hide()
+--- Method
+--- Hide the JsonFormat view.
+function hide(time)
+    sheetView:hide(time)
 end
 
 --- KSheet:show()
 --- Method
---- Show current application's keybindings in a view.
+--- Show JsonFormat.
 function show(time)
     bindCopyKey()
     local str = hs.pasteboard.getContents()
     -- local webcontent = generateHtml()
     -- sheetView:html(webcontent, "http://localhost")
-    sheetView:url("https://i.sugood.xyz/pages/jsonweb.html")
+    -- sheetView:url("https://i.sugood.xyz/pages/jsonweb.html")
     sheetView:show(time)
 end
 
diff --git a/modules/systemInfo.lua b/modules/systemInfo.lua
index a277b3b..97cc303 100644
--- a/modules/systemInfo.lua
+++ b/modules/systemInfo.lua
@@ -156,21 +156,31 @@ end
 function getVmStats()
 
     local vmStats = hs.host.vmStat()
-    --1024^2
-    local megDiv = 1048576
-    local megMulti = vmStats.pageSize / megDiv
+    -- --1024^2
+    -- local megDiv = 1048576
+    -- local megMulti = vmStats.pageSize / megDiv
 
-    local totalMegs = vmStats.memSize / megDiv  --总内存
-    local megsCached = vmStats.fileBackedPages * megMulti   --缓存内存
-    local freeMegs = vmStats.pagesFree * megMulti   --空闲内存
+    -- local totalMegs = vmStats.memSize / megDiv  --总内存
+    -- local megsCached = vmStats.fileBackedPages * megMulti   --缓存内存
+    -- local freeMegs = vmStats.pagesFree * megMulti   --空闲内存
 
-    --第一种方法使用 APP内存+联动内存+被压缩内存 = 已使用内存
-    -- local megsUsed =  vmStats.pagesWiredDown * megMulti -- 联动内存
-    -- megsUsed = megsUsed + vmStats.pagesUsedByVMCompressor * megMulti -- 被压缩内存
-    -- megsUsed = megsUsed + (vmStats.pagesActive +vmStats.pagesSpeculative)* megMulti  -- APP内存
+    -- --第一种方法使用 APP内存+联动内存+被压缩内存 = 已使用内存
+    -- --local megsUsed =  vmStats.pagesWiredDown * megMulti -- 联动内存
+    -- --megsUsed = megsUsed + vmStats.pagesUsedByVMCompressor * megMulti -- 被压缩内存
+    -- --megsUsed = megsUsed + (vmStats.pagesActive +vmStats.pagesSpeculative)* megMulti  -- APP内存
 
-    --第二种方法使用 总内存-缓存内存-空闲内存 = 已使用内存
-    local megsUsed = totalMegs - megsCached - freeMegs
+    -- --第二种方法使用 总内存-缓存内存-空闲内存 = 已使用内存
+    -- local megsUsed = totalMegs - megsCached - freeMegs
+
+    --第三种方法，由于部分设备pageSize获取不正确，所以只能通过已使用页数+缓存页数+空闲页数计算总页数
+    local megsUsed =  vmStats.pagesWiredDown -- 联动内存
+    megsUsed = megsUsed + vmStats.pagesUsedByVMCompressor -- 被压缩内存
+    megsUsed = megsUsed + vmStats.pagesActive +vmStats.pagesSpeculative -- APP内存
+
+    local megsCached = vmStats.fileBackedPages   --缓存内存
+    local freeMegs = vmStats.pagesFree   --空闲内存
+
+    local totalMegs = megsUsed + megsCached + freeMegs
 
     local usedMem = megsUsed/totalMegs * 100
     return formatPercent(usedMem)
diff --git a/modules/windows.lua b/modules/windows.lua
index 60aa519..7cba70c 100644
--- a/modules/windows.lua
+++ b/modules/windows.lua
@@ -131,7 +131,9 @@ function focusScreen(screen)
       window.orderedWindows(),
       fnutils.partial(isInScreen, screen))
   local windowToFocus = #windows > 0 and windows[1] or window.desktop()
-  windowToFocus:focus()
+  if(windowToFocus ~=nil ) then
+    windowToFocus:focus()
+  end
 
   -- move cursor to center of screen
   local pt = geometry.rectMidPoint(screen:fullFrame())