摘要： main() { //创建时间对象，获取当前时间 DateTime now = new DateTime.now(); print("当前时间：$now"); //创建时间对象，并指定时间 DateTime victoryDay = new DateTime(1945,9,9); print("日本于${victoryDay.year}年${victoryDay.mo... 阅读全文

摘要： import 'package:flutter/material.dart'; void main() { runApp( MaterialApp( title: 'Flutter gesture', home: LearnFloatingActionButton(), )); } class LearnFloatingActionButton extends Sta... 阅读全文

摘要： //main.dart文件 import 'package:flutter/material.dart'; import 'package:myapp/Tabbar.dart'; void main() => runApp(MyApp()); class MyApp extends Stateles 阅读全文

摘要： import 'package:flutter/material.dart'; void main() { runApp( MaterialApp( title: 'Flutter gesture', // home: TutorialHome(), home: LearnScaffold(), )); } class LearnScaffold extends... 阅读全文

摘要： //text的主要属性有：textAlign，maxLines，overflow等。 Text( "hello flutter!", TextAlign:TextAlign.center, maxLines:1, overflow:TextOverflow.ellipsis, // 显示不完，就在后面显示点点 style:TextStyle( fontSize:30.... 阅读全文

摘要： // =>是return语句的简写 add3(a, b) => a + b; 阅读全文

摘要： 大家在学习Flutter的时候，刚刚开始学习布局应该会各种遇到溢出。比如在用到Row或者Column经常会遇到布局溢出的问题。 The overflowing RenderFlex has an orientation of Axis.horizontal.flutter: The edge of 阅读全文

摘要： Error connecting to the service protocol: HttpException: Connection closed before full header was received, uri = http://127.0.0.1:53811/WcKOPFtfQvg=/ 阅读全文

摘要： // NSArray --> NSMutableArray NSMutableArray *myMutableArray = [myArray mutableCopy]; // NSMutableArray --> NSArray NSArray *myArray = [myMutableArray copy]; 阅读全文

摘要： //超越打印限制 #define NSLog(format,...) printf("%s",[[NSString stringWithFormat:(format), ##__VA_ARGS__] UTF8String]) 阅读全文