使用.proxy()调用插件方法

const myPlugin = {
  install(Vue) {
    Vue.myPluginMethod = function() {
      console.log('myPluginMethod called');
    };
  },
};

const proxyPlugin = new Proxy(myPlugin, {
  get(target, key) {
    if (key === 'install') {
      return function(Vue) {
        console.log('Before calling myPluginMethod');
        target[key](Vue);
        console.log('After calling myPluginMethod');
      };
    }
    return target[key];
  },
});

Vue.use(proxyPlugin);
Vue.myPluginMethod();