import axios from ‘axios‘
 
const host = process.env.NODE_ENV === ‘development‘ ? ‘dev api host‘ : ‘prod api host‘ // 根据 process.env.NODE_ENV 的值判断当前是什么环境
const instance = axios.create({
  baseURL: host
})
 
Vue.prototype.$http = instance

this.$http.get(‘/api/userData‘)
  .then(data => {
    console.log(data)
  })