152 lines
2.8 KiB
Dart
152 lines
2.8 KiB
Dart
// js
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import 'dart:js' as Js;
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import 'dart:html';
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abstract class IPlr {}
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class NPlr extends IPlr {}
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SpanElement Span(String cls) {
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return new SpanElement()..classes.add(cls);
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}
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DivElement Div(String cls) {
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return new DivElement()..classes.add(cls);
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}
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TableCellElement TD(TableRowElement tr) {
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TableCellElement td = new TableCellElement();
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tr.append(td);
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return td;
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}
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ParagraphElement P(String cls) {
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return new ParagraphElement()..classes.add(cls);
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}
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String b(String str) {
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return str;
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}
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String smile(String str) {
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return '<div class="smile s_$str"></div>';
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}
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String l(String str, String key) {
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return str;
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}
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num drawText(CanvasRenderingContext2D ctx, String txt, int x, int y, int w,
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bool center) {
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TextMetrics tm = ctx.measureText(txt);
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ctx.fillText(txt, x, y + 15, w);
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return 1;
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}
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class Dt {
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static String ex = b('!');
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static String add = b('+');
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static String at = b('@');
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}
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void main() {
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print(Dt.at);
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// Find an element by id (an-id).
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Element idElement = querySelector('#an-id')!;
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// Find an element by class (a-class).
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Element classElement = querySelector('.a-class')!;
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// Find all elements by tag (<div>).
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List<Element> divElements = querySelectorAll('div');
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Map test_map = {
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"a": 1,
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};
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// 插入
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test_map["b"] = 2;
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// 删除
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test_map.remove("a");
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// 修改
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test_map["b"] = 3;
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// 查找
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print(test_map["b"]);
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// 遍历
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test_map.forEach((key, value) {
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print("$key : $value");
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});
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// 长度
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print(test_map.length);
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// 是否为空
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print(test_map.isEmpty);
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// 是否不为空
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print(test_map.isNotEmpty);
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// 是否包含key
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print(test_map.containsKey("b"));
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// 是否包含value
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print(test_map.containsValue(3));
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// 转换为list
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print(test_map.keys.toList());
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print(test_map.values.toList());
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// 转换为json
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print(test_map.toString());
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// 清空
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test_map.clear();
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print(test_map);
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TableRowElement tr = new TableRowElement();
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TD(tr)
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..text = l('击杀', 'killedCount')
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..style.width = '44px';
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TD(tr)
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..text = l('致命一击', 'killerName')
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..style.minWidth = '112px';
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var plr = new NPlr();
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DivElement plist = document.querySelector('.plist') as DivElement;
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DivElement pbody = document.querySelector('.pbody') as DivElement;
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DivElement p = Div('p');
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p.append(tr);
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pbody.append(p);
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plist.append(pbody);
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print(idElement);
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print(classElement);
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print(divElements);
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querySelector('#inputs')!.nodes.add(idElement);
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print("Hello, World!");
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var a = "Hello, World!";
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for (var i = 0; i < 10; i++) {
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a += " " + i.toString();
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}
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int b = 124242424;
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for (var i = 0; i < 10; i++) {
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b += b * i;
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}
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// js sleep
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Future.delayed(Duration(milliseconds: 1000)).then((value) {
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print("延时1秒执行 then ");
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print(value);
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});
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var closuer = () {
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print("closuer");
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};
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closuer();
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print(a);
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}
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