text: import Vue from 'vue'
  import Vuex from 'vuex'
  
  Vue.use(Vuex)
  
  export default new Vuex.Store({
    state: {
      id: '123456',
      openedTab: ['index'],
      activeTab: ''
    },
    mutations: {
      addTab (state, componentName) {
        state.openedTab.push(componentName)
      },
      changeTab (state, componentName) {
        state.activeTab = componentName
      },
      deductTab (state, componentName) {
        let index = state.openedTab.indexOf(componentName)
        state.openedTab.splice(index, 1)
      }
    }
  })
  