test-in-demo/src/languages/i18n.ts

## Project setup ``` yarn install ```

import { reactive }  from "vue"
import { createI18n } from "vue-i18n";
import zh from "./zh";
import en from "./en";
const messages = reactive({
  en: {
    ...en,
  },
  zh: {
    ...zh,
  },
});
const i18n = createI18n({
  locale: "zh", //定义默认语言为中文
  messages
})
export default i18n