import 'package:flutter/material.dart';class AppBarDemoPage extends StatelessWidget {const AppBarDemoPage({Key key}) : super(key: key);@overrideWidget build(BuildContext context) {ret...

Container组件练习import 'package:flutter/material.dart'; //快捷方式:fimvoid main() {runApp(MyApp());}//自定义组件class MyApp extends StatelessWidget {@overrideWidget build(BuildContext context) {...

下载夜神模拟器下载链接为什么下载第三方的模拟器，因为快，安装方便，操作又简单，很适合菜鸟的我下载安装完之后，打开android Studio的run ，执行Run 'app’就会自动把你的项目安装到模拟器上面Vscode开发安装Flutter、Flutter Widget Snippets、Dart插件选择文件夹打开自己的项目地址解决 Vscode是默认连接不上第三方模拟器打开...

import 'package:flutter/material.dart'; //快捷方式:fimvoid main() {runApp(MyApp());}//自定义组件class MyApp extends StatelessWidget {@overrideWidget build(BuildContext context) {// TODO: im...

import 'package:flutter/material.dart'; //快捷方式:fimvoid main() {runApp(MyApp());}//自定义组件class MyApp extends StatelessWidget {@overrideWidget build(BuildContext context) {// TODO: i...

/ api文档：https://element-plus.org/zh-CN/component/image.html#image-viewer-attributes。//自定义函数组件无法使用全局组件，需要单独引入。//传入createApp中移除节点的方法。// 监听显示的消失，需要移除dom。

在项目根目录新建三个env文件.env.development //开发环境.env.production //生产环境.env.test //测试环境.env.developmentNODE_ENV = 'development'VUE_APP_MODE = 'development'VUE_APP_BASE_URL = "http://testapi".env.productionNODE_E

function notdrag() {var video = document.getElementById("myvideo");var last = 0;video.ontimeupdate = function() {var current = video.currentTime;if (current -...

在父组件定义一个响应式的值chat为要向子组件传递的值updateChat为子组件修改chat的方法const chat = ref(null)const updateChat = (item) => {console.log("重新拿到的值", item)chat.value = item}provide('chat', chat)provide('updateChat', updateC

<video id="myvideo" controls><sourcesrc="https://vdse.bdstatic.com//b84fba2d24e31318aea3b215b0d394a9?authorization=bce-auth-v1/fb297a5cc0fb434c971b8fa103e8dd7b/2017-05-11T09:...