web-portal/src/plugins/var.js

import Vue from 'vue';
import _ from 'lodash';

const getSiteId = () => {
  let host = `${window.location.hostname}`; //`999991.smart.jilinjobswx.cn`
  let schId;
  let arr = host.split('.');
  if (arr.length > 0) {
    schId = arr[0];
    `${schId}`.includes('localhost') || `${schId}`.includes('127.0.0.1') ? (schId = 99991) : '';
    sessionStorage.setItem('schId', `${schId}`.includes('localhost') || `${schId}`.includes('127.0.0.1') ? 99991 : schId);
  }
  return schId;
};
const Plugin = {
  install(vue, options) {
    // 4. 添加实例方法
    vue.prototype.$limit = 10;
    vue.prototype.$site = getSiteId();
  },
};

Vue.use(Plugin);