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void main() => runApp( MyApp());class MyApp extends StatelessWidget {@overrideWidget build(BuildContext context) {returnMaterialApp(title: 'Navigation',initialRoute: '...
两种都是转载过来的第一种 转自https://blog.csdn.net/weixin_33835103/article/details/88490202main.dartimport 'package:flutter/material.dart';void main() => runApp(MyApp());class MyApp extends Stateless...
main.dartimport 'package:flutter/material.dart';import 'tabbar.dart';void main() => runApp(MyApp());class MyApp extends StatelessWidget {@overrideWidget build(BuildContext context) ...
class SearchBarDemo extends StatefulWidget {@override_SearchBarDemoState createState() => _SearchBarDemoState();}class _SearchBarDemoState extends State<SearchBarDemo> {//String...
将按钮的 color 设置一个变量 点击以后改变变量的值class ThemeColors {///纯黑色static Color colorBlack = Color.fromARGB(255, 0, 0, 0);}class SwitchDemo extends StatefulWidget {@overrideState<StatefulWid...
没有解释 因为我也不是很懂List<String> searchRecordTexts = ['aaaaa','bbbbb','ccccc','ddddd','eeeee','fffff','gggggg','qqqqqq','wwwwww',];class SingleChildScroll extends Sta...
input 框有一个maxlength属性maxlengthnumber规定输入字段中的字符的最大长度。onchangescript在元素值被改变时运行的脚本。onblurscript元素失去焦点时运行的脚本。onfocusscript当元素获得焦点时运行的脚本。Keyboard 事件...
转自https://blog.csdn.net/katydids/article/details/83830002vue点击时动态改变样式template中<li :class="{ active:index==isActive }"@click="changeValue(index)"v-for="( item , index ) in items" :ke...
npm i d3@3.xnpm i dagre-d3@0.3.0弹窗用的不是tispy 自己写的。不支持拖拽 没有写。<template><div class="Newdagre"><svg width="960" height="1000"/><div class="chartTooltip"&g...
用的是d3.v3 版本展示没有问题，细节有问题。采用的是自己的json，调接口的没有总结，太麻烦了。下面地址是原声的，支持提示框可复制文字，并且节点之间不会重叠，tree.size 改成 tree.nodeSize 即可https://blog.csdn.net/czy279470138/article/details/88419831<style>...