main(){// 一个字符串列表List<String>list=['apples','bananas','oranges'];// 使用 for 循环遍历列表for(int i=0;i<list.length;i++){print(list[i]);}} 运行结果 代码语言:javascript 代码运行次数:0 运行 AI代码解释 apples bananas oranges 2、for…in 循环 摘录:for...in只是对列表遍历的一...
执行结果:不及格 二、for、forin var list = [1,2,3,4,5]; for(var index =0;index < list.length; index++){ print(list[index]); } for(var iteminlist){ print(item); } 执行结果: 1 2 3 4 5 1 2 3 4 5 三、while、do...while intcount =0; while(count <5){ print(count++)...
for (int i = 0; i < list.length; i++) { print(list[i]); } } 1. 2. 3. 4. 5. 6. 7. 8. 运行结果 AI检测代码解析 apples bananas oranges 1. 2. 3. 2、for…in 循环 摘录:for...in 只是对列表遍历的一个语法糖,它可以屏蔽循环三大件,直接遍历访问元素。这样有益有...
Iterable<Match> matches = regex.allMatches(text); for (Match match in matches) { print(match.group(0)); // 依次输出: Dart, is, awesome } 11. 字符串编码与解码 codeUnitAt(index):获取字符的 Unicode 编码。 fromCharCode(code):从 Unicode 编码生成字符。 dart String text = 'A'; print(text...
num x, y;// Syntactic sugar for setting x and y// before the constructor body runs.Point(this.x,this.y); } 默认构造器 如果没有声明构造器,会提供一个默认的构造器。默认构造器是无参的,并且会调用父类的无参构造器。 构造器不会被继承
compound. Results – Gomisin A, gomisin N and schisandrin were well separated on a silica-coated TLC plate and the specific ion current chromatograms were successfully acquired from the TLC-DART-MS system. The TLC-DART-MS system for the quantitation of natural products showed better linearity ...
The for loop provides index access. for-in is simpler for element access. forEach is functional style. map transforms elements to a new iterable. $ dart main.dart for loop: Dart Python Java C# for-in loop: Dart Python Java C# forEach: ...
(fruits.first);// 获取元素最后一个元素print(fruits.last);// 利用索引获取元素print(fruits[0]);// 查找某个元素的索引号print(fruits.indexOf('apples'));// 删除指定位置的元素,返回删除的元素print(fruits.removeAt(0));// 删除指定元素,成功返回true,失败返回false// 如果集合里面有多个“apples”,...
IFS=','read-r -a define_items<<<"$DART_DEFINES"forindexin"${!define_items[@]}"doitem=$(decode_url"${define_items[$index]}")#Dart definitions also include items that are automatically defined on the Flutter side.#However, if we export those definitions, we will not be able to build...
list.forEach( (item) => print('${list.indexOf(item)}: $item')); Lexical closures A closure is a function object that has access to variables in its lexical scope, even when the function is used outside of its original scope.