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Dart语言递归函数
void main() { print(factorial(6)); } factorial(number) { if (number <= 0) { // termination case return 1;
Dart语言带有默认值的可选参数
// 带有默认值的可选参数 void main() { test_param(123); } void test_param(n1,{s1:12}) { print(n1);
Dart语言可选的命名参数
// Dart语言可选的命名参数 void main() { test_param(123); test_param(123,s1:'hello');
Dart语言可选的位置参数
// Dart语言可选的位置参数 void main() { test_param(123); } test_param(n1,[s1]) { print(n1); print(s1);
Dart语言参数化函数
void main() { test_param(123,"this is a string"); } test_param(int n1,String s1) { print(n1);
Dart语言addLast()方法
import 'dart:collection'; void main() { Queue numQ = new Queue(); numQ.addAll([100,200,300]);
Dart语言addFirst()方法
import 'dart:collection'; void main() { Queue numQ = new Queue(); numQ.addAll([100,200,300]);
Dart语言将多个值添加到队列
import 'dart:collection'; void main() { Queue queue = new Queue(); print("Default implementation ${queue.runtimeType}");
Dart语言集合队列
import 'dart:collection'; void main() { Queue queue = new Queue(); print("Default implementation ${queue.runtimeType}");
Dart语言集合映射
void main() { var details=new Map(); details['Usrname']='admin'; details['Password']='admin@123';
Dart语言从HashSet中删除值
import 'dart:collection'; void main() { Set numberSet = newHashSet(); numberSet.addAll([100,200,300]);
Dart语言将多个值添加到HashSet
import 'dart:collection'; void main() { Set numberSet = newHashSet(); numberSet.addAll([100,200,300]);
Dart语言HashSet
import 'dart:collection'; void main() { Set numberSet = newHashSet(); numberSet.add(100); numberSet.add(20);
Dart语言从HashMap中删除值
import 'dart:collection'; main() { var accounts = new HashMap(); accounts['dept'] = 'HR';
Dart语言将多个值添加到HashMap
import 'dart:collection'; main() { var accounts = new HashMap(); accounts.addAll({'dept':'HR','email':'[email protected]'});
Dart语言HashMap
import 'dart:collection'; main() { var accounts = new HashMap(); accounts['dept']='HR';