node configure增改接近完成，删除后端还没做

src/i18n.js

@@ -0,0 +1,37 @@
+import Vue from 'vue'
+import VueI18n from 'vue-i18n'
+import util from '@/libs/util'
+
+Vue.use(VueI18n)
+
+function loadLocaleMessages () {
+  const locales = require.context('./locales', true, /[A-Za-z0-9-_,\s]+\.json$/i)
+  const messages = {}
+  for (const key of locales.keys()) {
+    const matched = key.match(/([A-Za-z0-9-_]+)\./i)
+    if (matched && matched.length > 1) {
+      const locale = matched[1]
+      const localeElementUI = require(`element-ui/lib/locale/lang/${locales(key)._element}`)
+      messages[locale] = {
+        ...locales(key),
+        ...localeElementUI ? localeElementUI.default : {}
+      }
+    }
+  }
+  return messages
+}
+
+const messages = loadLocaleMessages()
+
+Vue.prototype.$languages = Object.keys(messages).map(langlage => ({
+  label: messages[langlage]._name,
+  value: langlage
+}))
+
+const i18n = new VueI18n({
+  locale: util.cookies.get('lang') || process.env.VUE_APP_I18N_LOCALE,
+  fallbackLocale: process.env.VUE_APP_I18N_FALLBACK_LOCALE,
+  messages
+})
+
+export default i18n