vue 实现中英文切换功能

1、首先安装插件vue-i18n

npm install vue-i18n --save-dev

2、创建文件

 en.ts 文件内容

module.exports = {
  language: {
    name: '英文',
  },
  about: {
    title: 'I am English',
  },
};

zh.ts 文件内容

module.exports = {
  language: {
    name: '中文',
  },
  about: {
    title: '我是中文',
  },
};

index.ts

// 中英文切换
import Vue from 'vue';
import VueI18n from 'vue-i18n';
Vue.use(VueI18n);

const i18n = new VueI18n({
  locale: localStorage.getItem('languageStorage') || 'zh',
  messages: {
    'zh': require('./zh'),
    'en': require('./en'),
  },
});

export default i18n;

3、在 mian.ts 引入i18n

import i18n from './components/language/index';

new Vue({
  router,
  store,
  i18n,
  render: (h) => h(App),
}).$mount('#app');

 DEMO

<template>
  <div class="about">
    {{ language }}
    <el-button-group>
      <el-button @click="setLanguage('zh')">中文</el-button>
      <el-button @click="setLanguage('en')">英文</el-button>
    </el-button-group>
    <h1>{{ $t('about.title') }}</h1>
  </div>
</template>
<script lang="ts">
import { Component, Vue } from 'vue-property-decorator';

@Component
export default class About extends Vue {
  public language: string = localStorage.getItem('languageStorage') || 'zh';
  private setLanguage(val: string) {
    localStorage.setItem('languageStorage', val);
    this.language = val;
    this.$i18n.locale = val;
  }
}
</script>