vue3中使用vuex和vue-router的详细步骤

cnpm  i  vuex@4 --save

//1. 导入依赖
//导入vuex的函数内容
import {createStore} from "vuex";
 
//调用函数进行配置
const store = createStore({
    state:{
        num:100,
    },
    mutations:{
        plus(state){
            state.num++;
        }
    },
    getters:{},
    actions:{},
    modules:{},//分模块
    // plugins:[],
})
 
//抛出对象的内容信息
export default store;

//导入vuex对象
const app = createApp(App);
//引入vuex的操作信息
import store from "./store/index";
app.use(store);

<template>
  <div>
 
    <button @click="plus">num++</button>
    {{$store.state.num}}
 
  </div>
</template>
 
<script>
import {useStore} from 'vuex'
export default {
 
  setup() {
    const store=useStore()
    const plus=()=>{
      store.commit('plus')
    }
   
    return {plus}
  },
}
</script>

cnpm i vue-router@4 --save

import {createRouter, createWebHistory} from 'vue-router'
const routes = [
    {
        name: 'home',
        path: '/',
        component: () => import('../views/Home.vue')
    },
    {
        name: 'login',
        path: '/log',
        component: () => import('../views/Login.vue')
    }     
];
const router = createRouter({
    history: createWebHistory(), 
    routes
})
 
export default router

import router from "./router/index";
app.use(router);

<template>
    <div>
        <h3>主页面Home</h3>
 
        <button @click="goMy">My</button>
    </div>
</template>
<script>
import {useRouter} from "vue-router"
export default {
    setup(){
        const router = useRouter();
        const goMy = ()=>{
            router.push("/my?id=100");
        }
        return {
            goMy
        }
    }
}
</script>

<template>
    <div>
        <h3>个人中心</h3>
    </div>
</template>
<script>
import {useRoute} from "vue-router"
export default {
 
    setup(){
        const route = useRoute();
 
        console.log(route);
 
        let {query} = route;
 
        console.log(query);
    }
    
}
</script>

cnpm i axios --save 

import axios from "axios";
 
const app = createApp(App);
 
app.config.globalProperties.$axios = axios;
 
app.use(store).use(router).mount('#app')

//导入axios
import axios from "axios";
 
//创建对象相关的信息
const Server = axios.create({
    baseURL:"",
    timeout:5000,
})
 
//配置前置拦截器或者后置拦截器
Server.interceptors.request.use((confirm)=>{
    return config;
},error=>Promise.reject(error));
 
 
//相应拦截器，数据返回，到达客户端之前触发。
Server.interceptors.response.use((response)=>{
    return response;
},error=>Promise.reject(error))
 
 
export default Server;

app.directive('focus',{
    mounted(el,binding){
        console.log(el,binding);
    el.focus()
    el.value=binding.value
    }
})

<template>
  <div>
    <input type="text" v-focus:change.native="123123"  placeholder="输入内容"/>
  </div>
</template>

<template>
  <div>
    <div class="box" v-drag></div>
  </div>
</template>
 
<script>
import {useStore} from 'vuex'
import {useRouter} from 'vue-router'
export default {
  directives: {
    drag: {
      mounted(el, binding) {
        //鼠标按下
        el.onmousedown = function () {
          var event = event || window.event;
          //获取坐标值
          var x1 = event.clientX;
          var y1 = event.clientY;
 
          //还需要获取偏移值
          var L = el.offsetLeft;
          var T = el.offsetTop;
 
          console.log(x1, y1, L, T);
 
          //鼠标移动
          document.onmousemove = function (event) {
            //获取坐标值
            var x2 = event.clientX;
            var y2 = event.clientY;
 
            var l = x2 - x1 + L;
 
            var maxW = document.documentElement.clientWidth - el.clientWidth;
 
            if(l<=0){
              l = 0;
            }
            if(l>=maxW){
              l = maxW;
            }
 
            //改变盒子的偏移值
            el.style.left =  l+ "px";
            el.style.top = y2 - y1 + T + "px";
          };
 
          //异动结束后，鼠标松开的时候触发的操作
          document.onmouseup = function(){
            document.onmousemove = null;
          }
        };
      },
    },
  },
  setup() {}
}
</script>
 
<style  scoped>
.box{
    width: 100px;
    height: 100px;
   background-color: lightcoral;
}
</style>