vue vuex 提交 this.$store.commit，{type: 'setSelectPro', selectPro: this.productId};
1、store.commit({'type':'mutation','parameter':'value'});
store.dispatch('action');
2、获取state保存的值
store.state.state
1、store.commit({'type':'mutation','parameter':'value'});
store.dispatch('action');
2、获取state保存的值
store.state.state
