Recently during the Google Developer Days Conference in China that was held on September 10, 2019, Flutter 1.9 was released along with the updated Dart 2.5 programming language.h
最近在2019年9月10日 ...……
Recently, Dearboy buys a dart for his dormitory, but neither Dearboy nor his roommate knows how to play it. So they decide to make a new rule in the dormitory, which goes as follows:
Given a number N ...……
在Android studio中导入flutter项目时报错:Dart SDK is not configured,这是因为在android studio里面没有配置Dart SDK的问题,可以通过下面步骤进行配置:
1.打开File =》Setting =》Language amp;amp;amp; Fram ...……
1、打开android-studio的setting里的Dart:
2、勾选好Enable Dart support for the Project,在Dart SDK path中配置dart-sdk的路径就好(如果需要勾选当前项目的,也要勾选当前项目)
点击右下方apply之后,即可愉快 ...……
Dart编程语言是一个完全面向对象的语言,包括基础类型如int变量也都是对象。
如何定义变量
var name = 'Bob';
变量的初始值
int lineCount;
assert(lineCount == null); // Variables (even numbers) are initia ...……
报错:boost_container.dart:Error:this expression has type ‘void’ and can’t be used
可能是flutter sdk版本和flutter boost版本不对应导致。如下图:
最新版本对应,请查看官网
ps:
更换flutter sdk版本 ...……