Vue我如何更改axios响应

Question

如何通过单击一下按钮将EUR更改为USD来更改axios响应

  data(){
      return {
        posts: ' ',
        errors: []
      }
  }
  mounted() {
    axios.get('http://data.fixer.io/api/latest?access_key=509c9d50c1e92a712be9c8f1f964cf67')
    .then(response => {
      // JSON responses are automatically parsed.
      this.posts = response.data.rates.EUR.toFixed(2)
    })
}
}