<script>
import?{mapMutations}?from?'vuex'
export?default?{
??name:?'Add',
??data?()?{
????return?{
??????title:?'',
??????content:?''
????}
??},
??methods:?{
????...mapMutations(["addItem"]),
????add?()?{
??????this.addItem({
????????title:?this.title,
????????content:?this.content
??????});
????}
??}
}
</script>

store.js

export?default?new?Vuex.Store({
??state:?{
????lists:?[]
??},
??mutations:?{
????addItem?(state,?value)?{
??????this.state.lists.push(value)
????}
??},
??actions:?{
??},
??modules:?{
??}
})