updata:移动端添加语言切换功能

main/manager-mobile/src/i18n/index.ts

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+import { ref } from 'vue'
+import { useLangStore } from '@/store/lang'
+import type { Language } from '@/store/lang'
+
+// 导入各个语言的翻译文件
+import zhCN from './zh_CN'
+import en from './en'
+import zhTW from './zh_TW'
+
+// 语言包映射
+const messages = {
+  zh_CN: zhCN,
+  en,
+  zh_TW: zhTW,
+}
+
+// 当前使用的语言
+const currentLang = ref<Language>('zh_CN')
+
+// 初始化语言
+export function initI18n() {
+  const langStore = useLangStore()
+  currentLang.value = langStore.currentLang
+}
+
+// 切换语言
+export function changeLanguage(lang: Language) {
+  currentLang.value = lang
+  const langStore = useLangStore()
+  langStore.changeLang(lang)
+}
+
+// 获取翻译文本
+export function t(key: string, params?: Record<string, string | number>): string {
+  const langMessages = messages[currentLang.value]
+
+  // 直接查找扁平键名
+  if (langMessages && typeof langMessages === 'object' && key in langMessages) {
+    let value = langMessages[key]
+    if (typeof value === 'string') {
+      // 处理参数替换
+      if (params) {
+        let result = value
+        Object.entries(params).forEach(([paramKey, paramValue]) => {
+          const regex = new RegExp(`\{${paramKey}\}`, 'g')
+          result = result.replace(regex, String(paramValue))
+        })
+        return result
+      }
+      return value
+    }
+    return key
+  }
+
+  return key // 如果找不到对应的翻译，返回key本身
+}
+
+// 获取当前语言
+export function getCurrentLanguage(): Language {
+  return currentLang.value
+}
+
+// 获取支持的语言列表
+export function getSupportedLanguages(): {code: Language, name: string}[] {
+  return [
+    { code: 'zh_CN', name: '简体中文' },
+    { code: 'en', name: 'English' },
+    { code: 'zh_TW', name: '繁體中文' },
+  ]
+}