## Dart编程实例 - toString() 方法```dartvoid main() { int n = 12; print(n.toString());}```
## Dart编程实例 - 迭代集合```dartimport dart:collection;void main() { Queue numQ = new Queue(); numQ.addAll([100,200,300]); Iterator i= numQ.iterator; while(i.moveNext())
## Dart编程实例 - 集合列表```dartvoid main() { List logTypes = new List(); logTypes.add(WARNING); logTypes.add(ERROR); logTypes.add(INFO); // iterating across list
## Dart编程实例 - 集合 Set```dartvoid main() { Set numberSet = new Set(); numberSet.add(100); numberSet.add(20); numberSet.add(5); numberSet.add(60); numberSet.add
## Dart编程实例 - Set.from()```dartvoid main() { Set numberSet = new Set.from([12,13,14]); print(Default implementation :${numberSet.runtimeType}); // all elements are retriev
## Dart编程实例 - HashMap```dartimport dart:collection;main() { var accounts = new HashMap(); accounts[dept]=HR; accounts[name]=Tom; accounts[email]=tom@xyz.
## Dart编程实例 - 添加多个值到HashMap```dartimport dart:collection;main() { var accounts = new HashMap(); accounts.addAll({dept:HR,email:tom@xyz.com}); print(Map after add
## Dart编程实例 - 从HashMap删除值```dartimport dart:collection;main() { var accounts = new HashMap(); accounts[dept] = HR; accounts[name] = Tom; accounts[email] =
## Dart编程实例 - HashSet```dartimport dart:collection; void main() { Set numberSet = new HashSet(); numberSet.add(100); numberSet.add(20); numberSet.add(5);
## Dart编程实例 - 添加多个值到HashSet```dartimport dart:collection;void main() { Set numberSet = new HashSet(); numberSet.addAll([100,200,300]); print(Default implementation :${n
