diff --git a/src/common/qq-basic-info.ts b/src/common/qq-basic-info.ts
index 5dcfc909..20207c2f 100644
--- a/src/common/qq-basic-info.ts
+++ b/src/common/qq-basic-info.ts
@@ -53,26 +53,22 @@ export class QQBasicInfoWrapper {
     }
 
     //此方法不要直接使用
-    getQUAInternal() {
-        switch (systemPlatform) {
-        case 'linux':
-            return `V1_LNX_${this.getFullQQVesion()}_${this.getQQBuildStr()}_GW_B`;
-        case 'darwin':
-            return `V1_MAC_${this.getFullQQVesion()}_${this.getQQBuildStr()}_GW_B`;
-        default:
-            return `V1_WIN_${this.getFullQQVesion()}_${this.getQQBuildStr()}_GW_B`;
-        }
+    getQUAFallback() {
+        const platformMapping: Partial<Record<NodeJS.Platform, string>> = {
+            win32: `V1_WIN_${this.getFullQQVesion()}_${this.getQQBuildStr()}_GW_B`,
+            darwin: `V1_MAC_${this.getFullQQVesion()}_${this.getQQBuildStr()}_GW_B`,
+            linux: `V1_LNX_${this.getFullQQVesion()}_${this.getQQBuildStr()}_GW_B`,
+        };
+        return platformMapping[systemPlatform] ?? (platformMapping.win32)!;
     }
 
-    getAppidInternal() {
-        switch (systemPlatform) {
-        case 'linux':
-            return '537246140';
-        case 'darwin':
-            return '537246140';
-        default:
-            return '537246092';
-        }
+    getAppIdFallback() {
+        const platformMapping: Partial<Record<NodeJS.Platform, string>> = {
+            win32: '537246092',
+            darwin: '537246140',
+            linux: '537246140',
+        };
+        return platformMapping[systemPlatform] ?? '537246092';
     }
 
     getAppidV2(): { appid: string; qua: string } {
@@ -88,6 +84,6 @@ export class QQBasicInfoWrapper {
         // else
         this.context.logger.log(`[QQ版本兼容性检测] 获取Appid异常 请检测NapCat/QQNT是否正常`);
         this.context.logger.log(`[QQ版本兼容性检测] ${fullVersion} 版本兼容性不佳，可能会导致一些功能无法正常使用`,);
-        return { appid: this.getAppidInternal(), qua: this.getQUAInternal() };
+        return { appid: this.getAppIdFallback(), qua: this.getQUAFallback() };
     }
 }
diff --git a/src/core/index.ts b/src/core/index.ts
index c6be8827..60ff732b 100644
--- a/src/core/index.ts
+++ b/src/core/index.ts
@@ -20,11 +20,11 @@ import { LogLevel, LogWrapper } from '@/common/log';
 import { NodeIKernelLoginService } from '@/core/services';
 import { QQBasicInfoWrapper } from '@/common/qq-basic-info';
 import { NapCatPathWrapper } from '@/common/path';
-import path, { resolve } from 'node:path';
+import path from 'node:path';
 import fs from 'node:fs';
 import { hostname, systemName, systemVersion } from '@/common/system';
 import { NTEventWrapper } from '@/common/event';
-import { ChatType, DataSource, GroupMember, KickedOffLineInfo, Peer, SelfInfo, SelfStatusInfo } from '@/core/entities';
+import { DataSource, GroupMember, KickedOffLineInfo, SelfInfo, SelfStatusInfo } from '@/core/entities';
 import { NapCatConfigLoader } from '@/core/helper/config';
 import os from 'node:os';
 import { NodeIKernelGroupListener, NodeIKernelMsgListener, NodeIKernelProfileListener } from '@/core/listeners';
@@ -263,19 +263,12 @@ export async function genSessionConfig(
 ): Promise<WrapperSessionInitConfig> {
     const downloadPath = path.join(account_path, 'NapCat', 'temp');
     fs.mkdirSync(downloadPath, { recursive: true });
-    //os.platform() 
-    let systemPlatform = PlatformType.KWINDOWS;
-    switch (os.platform()) {
-        case 'win32':
-            systemPlatform = PlatformType.KWINDOWS;
-            break;
-        case 'darwin':
-            systemPlatform = PlatformType.KMAC;
-            break;
-        case 'linux':
-            systemPlatform = PlatformType.KLINUX;
-            break;
-    }
+    const platformMapping: Partial<Record<NodeJS.Platform, PlatformType>> = {
+        win32: PlatformType.KWINDOWS,
+        darwin: PlatformType.KMAC,
+        linux: PlatformType.KLINUX,
+    };
+    const systemPlatform = platformMapping[os.platform()] ?? PlatformType.KWINDOWS;
     return {
         selfUin,
         selfUid,
diff --git a/src/onebot/api/group.ts b/src/onebot/api/group.ts
index 19c7a800..013c944c 100644
--- a/src/onebot/api/group.ts
+++ b/src/onebot/api/group.ts
@@ -139,8 +139,7 @@ export class OneBotGroupApi {
                     }
                     if (element.grayTipElement.jsonGrayTipElement.busiId == 2407) {
                         const type = json.items[json.items.length - 1]?.txt;
-                        switch (type) {
-                        case "头衔": {
+                        if (type === "头衔") {
                             const memberUin = json.items[1].param[0];
                             const title = json.items[3].txt;
                             logger.logDebug('收到群成员新头衔消息', json);
@@ -150,11 +149,10 @@ export class OneBotGroupApi {
                                 parseInt(memberUin),
                                 title,
                             );
-                        }
-                        case "移出":
+                        } else if (type === "移出") {
                             logger.logDebug('收到机器人被踢消息', json);
                             return;
-                        default:
+                        } else {
                             logger.logWarn('收到未知的灰条消息', json);
                         }
                     }
diff --git a/src/shell/napcat.ts b/src/shell/napcat.ts
index 16da00ef..507e1e64 100644
--- a/src/shell/napcat.ts
+++ b/src/shell/napcat.ts
@@ -70,18 +70,12 @@ export async function NCoreInitShell() {
         const dataPathGlobal = path.resolve(dataPath, './nt_qq/global');
         return [dataPath, dataPathGlobal];
     })();
-    let systemPlatform = PlatformType.KWINDOWS;
-    switch (os.platform()) {
-    case 'win32':
-        systemPlatform = PlatformType.KWINDOWS;
-        break;
-    case 'darwin':
-        systemPlatform = PlatformType.KMAC;
-        break;
-    case 'linux':
-        systemPlatform = PlatformType.KLINUX;
-        break;
-    }
+    const platformMapping: Partial<Record<NodeJS.Platform, PlatformType>> = {
+        win32: PlatformType.KWINDOWS,
+        darwin: PlatformType.KMAC,
+        linux: PlatformType.KLINUX,
+    };
+    const systemPlatform = platformMapping[os.platform()] ?? PlatformType.KWINDOWS;
     if (!basicInfoWrapper.QQVersionAppid || !basicInfoWrapper.QQVersionQua) throw new Error('QQVersionAppid or QQVersionQua  is not defined');
     // from initConfig
     engine.initWithDeskTopConfig(