provide() {

    return {

      changeSelectOptions: this.changeSelectOptions,

      switchTabs: () => this.switchTabs,

      setLoading: this.setLoading,

      getFilterData: this.getFilterData,

      getDisplayAreaH: this.getDisplayAreaH

    };

  },

methods: {

    changeSelectOptions(obj) {

       // 你的逻辑

      },

     getDisplayAreaH() { // 你的逻辑 }

}    

inject: [

    'changeSelectOptions',

    'switchTabs',

    'setLoading',

    'getFilterData',

    'getDisplayAreaH'

  ],

methods： {

   this.changeSelectOptions(value);

   foldSwitch() {

      this.fold = !this.fold;

      if (this.fold) {

        this.dynamicStyle = {

          height: '34px',

          overflow: 'hidden'

        };

      } else {

        this.dynamicStyle = {}

      }

      this.getDisplayAreaH();

    }

}