vuex跨模块的mapGetter和mapMutation

映射

...mapGetters("模块名",['字段名'])
...mapState("模块名",['字段名'])

直接操作

this.$store.getters["模块名/字段名"]
this.$store.commit["模块名/方法名"]

映射别名

...mapState('some/xxx/module', {
    a1: state => state.a,
    b1: state => state.b
})

...mapMutaions('some/xxx/module', ['foo', 'bar'])

...mapActions('some/xxx/module', [
    'foo', // -> this.foo()
    'bar' // -> this.bar()
])