diff --git a/src/platforms/mp-weixin/helpers/enhance-system-info.js b/src/platforms/mp-weixin/helpers/enhance-system-info.js
index 4f5f7ab6b60213e3748f1b98b5704910092183bc..8fb388ac18a770e3a4d23378f56fe0f454713540 100644
--- a/src/platforms/mp-weixin/helpers/enhance-system-info.js
+++ b/src/platforms/mp-weixin/helpers/enhance-system-info.js
@@ -1,4 +1,4 @@
-function _getDeviceBrand(model) {
+function _getDeviceBrand (model) {
   if (/iphone/gi.test(model) || /ipad/gi.test(model) || /mac/gi.test(model)) { return 'apple' }
   if (/windows/gi.test(model)) { return 'microsoft' }
   return ''
@@ -6,7 +6,7 @@ function _getDeviceBrand(model) {
 
 const UUID_KEY = '__DC_STAT_UUID'
 let deviceId
-export function useDeviceId(result) {
+export function useDeviceId (result) {
   deviceId = deviceId || __GLOBAL__.getStorageSync(UUID_KEY)
   if (!deviceId) {
     deviceId = Date.now() + '' + Math.floor(Math.random() * 1e7)
@@ -18,7 +18,7 @@ export function useDeviceId(result) {
   result.deviceId = deviceId
 }
 
-export function addSafeAreaInsets(result) {
+export function addSafeAreaInsets (result) {
   if (result.safeArea) {
     const safeArea = result.safeArea
     result.safeAreaInsets = {
@@ -30,7 +30,7 @@ export function addSafeAreaInsets(result) {
   }
 }
 
-export function populateParameters(result) {
+export function populateParameters (result) {
   const {
     brand = '', model = '', system = '',
     language = '', theme, version,
@@ -60,10 +60,10 @@ export function populateParameters(result) {
   }
 
   // deviceType
-  let deviceType = getGetDeviceType(result, model)
+  const deviceType = getGetDeviceType(result, model)
 
   // deviceModel
-  let deviceBrand = getDeviceBrand(brand, model, isQuickApp)
+  const deviceBrand = getDeviceBrand(brand, model, isQuickApp)
 
   // hostName
   let _hostName = hostName || __PLATFORM__.split('-')[1] // mp-jd
@@ -128,7 +128,7 @@ export function populateParameters(result) {
   Object.assign(result, parameters)
 }
 
-export function getGetDeviceType(result, model) {
+export function getGetDeviceType (result, model) {
   let deviceType = result.deviceType || 'phone'
   if (__PLATFORM__ !== 'mp-baidu') {
     const deviceTypeMaps = {
@@ -149,7 +149,7 @@ export function getGetDeviceType(result, model) {
   return deviceType
 }
 
-export function getDeviceBrand(
+export function getDeviceBrand (
   brand,
   model,
   isQuickApp = false
@@ -165,4 +165,4 @@ export function getDeviceBrand(
     deviceBrand = _getDeviceBrand(deviceBrand)
   }
   return deviceBrand
-}
\ No newline at end of file
+}
diff --git a/src/platforms/mp-weixin/helpers/get-app-base-info.js b/src/platforms/mp-weixin/helpers/get-app-base-info.js
index da507ed5b37669d70273499e9718d9ff0662bb8b..cc3abbdec9c2f345f5da4ec393138c975beb30d8 100644
--- a/src/platforms/mp-weixin/helpers/get-app-base-info.js
+++ b/src/platforms/mp-weixin/helpers/get-app-base-info.js
@@ -18,7 +18,7 @@ export default {
       appId: process.env.UNI_APP_ID,
       appName: process.env.UNI_APP_NAME,
       appVersion: process.env.UNI_APP_VERSION_NAME,
-      appVersionCode: process.env.UNI_APP_VERSION_CODE,
+      appVersionCode: process.env.UNI_APP_VERSION_CODE
     })
   }
 }
diff --git a/src/platforms/mp-weixin/helpers/get-device-info.js b/src/platforms/mp-weixin/helpers/get-device-info.js
index efdc5f70e75a18ecce348f60e3e7d2baca7fb953..96ee3b92bf48b9623af6efd3a1576b1be1d86c95 100644
--- a/src/platforms/mp-weixin/helpers/get-device-info.js
+++ b/src/platforms/mp-weixin/helpers/get-device-info.js
@@ -1,16 +1,16 @@
-import { useDeviceId, getGetDeviceType, getDeviceBrand } from './enhance-system-info';
+import { useDeviceId, getGetDeviceType, getDeviceBrand } from './enhance-system-info'
 
 export default {
   returnValue: function (result) {
     const { brand, model } = result
-    let deviceType = getGetDeviceType(result, model)
-    let deviceBrand = getDeviceBrand(brand, model)
+    const deviceType = getGetDeviceType(result, model)
+    const deviceBrand = getDeviceBrand(brand, model)
     useDeviceId(result)
 
     Object.assign(result, {
       deviceType,
       deviceBrand,
-      deviceModel: model,
+      deviceModel: model
     })
   }
 }
diff --git a/src/platforms/mp-weixin/helpers/get-window-info.js b/src/platforms/mp-weixin/helpers/get-window-info.js
index 9c850d1761dd64ee84e912432187861852efba96..bda0ccb1c1515212598f59f689dbedbc91c5ad58 100644
--- a/src/platforms/mp-weixin/helpers/get-window-info.js
+++ b/src/platforms/mp-weixin/helpers/get-window-info.js
@@ -1,4 +1,4 @@
-import { addSafeAreaInsets } from './enhance-system-info';
+import { addSafeAreaInsets } from './enhance-system-info'
 
 export default {
   returnValue: function (result) {
@@ -6,7 +6,7 @@ export default {
 
     Object.assign(result, {
       windowTop: 0,
-      windowBottom: 0,
+      windowBottom: 0
     })
   }
 }