编写命令行应用 What's the point? Running an app with the standalone Dart VM Overview of the dcat app code Getting dependencies Running dcat Parsing command-line arguments Reading a...

Important concepts Important concepts As you learn about the Dart language, keep these facts and concepts inmind: Everything you can place in a variable is an object, and eve...

Pub Package Registry Requirements Configuring the package registry Publish a package Install a package Pub Package Registry Publish Pub packages for your user or organizati...

Web 上与 JavaScript 互调 Web 上与 JavaScript 互调 The Dart web platform supports callingJavaScript using the js package,also known as package:js. For help using the js package, see...

Dart by Example: Constants Dart by Example: Constants In dart, compile-time constants can be created as longas the object's deep structure can be determined at compile time. i...

Dart by Example: HTTP Requests Dart by Example: HTTP Requests import 'dart:convert' ; import 'package:http/http.dart' as http ; main () async { // The htt...

Dart by Example: Values Dart by Example: Values main () { // Strings can be appended using + print ( "dart" + "lang" ); // Integers and Floats print...

Maps Maps In general, a map is an object that associates keys and values. Bothkeys and values can be any type of object. Each key occurs only once,but you can use the same valu...

Dart by Example: While Dart by Example: While null $ dart while . dart while 1 while 2 dowhile 0 dowhile 1 dowhile 2 by @jryanio | source | lic...