如何在Vue项目中利用ECharts4Taro3实现数据可视化的多语言支持

npm install vue-i18n echarts4taro3 --save

import Vue from 'vue'
import VueI18n from 'vue-i18n'
import messages from './i18n'

Vue.use(VueI18n)

const i18n = new VueI18n({
  locale: 'zh-CN', // 默认语言为中文
  messages
})

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

// zh-CN.js
export default {
  echarts: {
    title: '图表标题',
    legend: '图例',
    tooltip: '提示框'
  }
}

// en-US.js
export default {
  echarts: {
    title: 'Chart Title',
    legend: 'Legend',
    tooltip: 'Tooltip'
  }
}

<template>
  <div>
    <react-echarts
      :option="chartOption"
      :lang="$t('echarts')"
    ></react-echarts>
  </div>
</template>

<script>
export default {
  data() {
    return {
      chartOption: {
        title: {
          text: ''
        },
        legend: {
          data: []
        },
        tooltip: {}
      }
    }
  }
}
</script>

<template>
  <div>
    <button @click="switchLocale('zh-CN')">中文</button>
    <button @click="switchLocale('en-US')">English</button>
  </div>
</template>

<script>
export default {
  methods: {
    switchLocale(locale) {
      this.$i18n.locale = locale
    }
  }
}
</script>