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                # mutations傳遞函數 ## index.js中 ~~~ import Vue from 'vue' import Vuex from 'vuex' Vue.use(Vuex) const store = new Vuex.Store({ state: { count:0 }, mutations: { addN(state,step){ //函數的邏輯 state.count+=step; } }, actions:{ } }) export default store ~~~ ![](https://img.kancloud.cn/51/b8/51b8d770764d3942b831d6fa96da1bad_1588x1267.png) # vue組件中使用 ## this.$store.commit(); //傳入值給vuex ## 案例 ~~~ this.$store.commit(); //傳入值給vuex ~~~ ~~~ xiao(){ //commit作用,就是調用某個mutation 函數 this.$store.commit('addN',2); //傳入值給vuex } ~~~ ![](https://img.kancloud.cn/ce/55/ce559ce4d7ca61f0fbbbf3555f195f34_1988x1278.png) ![](https://img.kancloud.cn/c0/e0/c0e0e58218d77d45839407e5d9407647_1695x533.png)
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