feature：代码初始化。

src/utils/dynamicTitle.js

@@ -0,0 +1,25 @@
+import defaultSettings from '@/settings'
+import useSettingsStore from '@/store/modules/settings'
+import { getConfigKey } from '@/api/system/config'
+
+/**
+ * 动态修改标题
+ */
+export function useDynamicTitle() {
+  const settingsStore = useSettingsStore()
+  if (settingsStore.dynamicTitle) {
+    document.title = settingsStore.title + ' - ' + defaultSettings.title
+  } else {
+    document.title = title
+  }
+}
+
+let title = defaultSettings.title
+
+function getDefaultTitle() {
+  getConfigKey('defaultTitle').then((res) => {
+    title = res.msg
+  })
+}
+
+getDefaultTitle()