单个更新

直接操作

function changeCount(number: number) {
  mainStroe.count += number
}

通过 Ref 操作

import { useMainStore } from './store.ts'

const mainStroe = useMainStore()
const { count } = storeToRefs(mainStroe)

function changeCount(number: number) {
  count.value += number
}

批量更新

function changeCount(number: number) {
  mainStroe.$patch({
    count: count.value + number,
  })
}

批量更新(函数式)

function changeCount(number: number) {
  mainStroe.$patch((state) => {
    state.count += number
    state.arr.push(123)
  })
}

使用 action

action