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1.main.js: 2.app.js: 3.在src 下新建/views/Login.js: 4.在src 下新建/views/RequirAuthRoute.js:...

1.下载第三方包： 2.组件中引入echarts: 3.定时器+自动刷新: 4.页面自适应：只适合基本使用...

1.index.html入口文件配置： //多个插件时，用逗号进行分隔 2.下载适配于react项目的高德地图的第三方包： 集成了所有依赖包 npm install @ui...

npm i jsonwebtoken npm i express-jwt 1.app.js文件下：     var {expressjwt:jwt} = require('...

var express = require('express'); var router = express.Router(); var {userModel,userIn...

1.import {useNavigate} from 'react-router-dom'; 2.const navigate = useNavigate(); 3.na...

1.第一种方式： import React, { useEffect, useState } from 'react' import { ProductCard, Pull...

import React, { useRef } from 'react'; const ProductLayout = () => {     const box = u...

过渡 transition: all 3s 5s linear; all:过渡的属性 3s:过渡的时间 5s:延迟的时间 linear:过渡的速度 2D转换 旋转 tran...

1.html: 2.css代码: .kuang {         height: 500px;         width: 400px;         // back...

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import React, { useEffect, useRef } from 'react'; import ReactEcharts from 'echarts-fo...

import React, { useState } from 'react'; import './SendCode.scss'; import { Input, But...

import React, { useState } from 'react' export default function Elevator() {   // wind...

1.首先是js模块:     import React, { useEffect, useRef, useState } from 'react' import { Sid...

1.下载 插件：     yarn add react-draggable / npm i react-draggable 2.具体属性 参考react-draggable...

1.index.js(根目录下): import React from 'react'; import ReactDOM from 'react-dom/client'; ...

1.index.html import React, { Component } from 'react'; import './index.css' class Drag...