hello world // Define a function. printNumber(num aNumber) { print('The number is $aNumber.'); // Print to console. } // This is where the app starts executing. main() { var number = 42; // Declare and initialize a variable. printNumber(number); // C…
官网教程 https://www.dartlang.org/guides/language/language-tour dart是一个单线程的语言,没有多线程 Final and const If you never intend to change a variable, use final or const, either instead of var or in addition to a type. A final variable can be set only once; a con…
引用 mport 'dart:convert'; JSON 解码(JSON String->Object) // NOTE: Be sure to use double quotes ("), // not single quotes ('), inside the JSON string. // This string is JSON, not Dart. var jsonString = ''' [ {}, {} ] '''; var scores = jsonDecode(jsonS…
Dart Essentials 文件夹 1 Getting Started 2 Practical Dart 3 The Power of HTML5 with Dart 4 Developing a Mobile App with Dart 5 Web Components with polymer.dart 6 AngularDart 7 Server-side apps with Dart 8 Testing and Profiling 9 Writing Native Extension…
