Timer.ts文件
module Time {
export class Test {
element: HTMLElement;
span: HTMLElement;
timer: number;
constructor (e:HTMLElement) {
this.element = e;
this.element.innerHTML = '现在的时间是:';
this.span = document.createElement('span');
this.element.appendChild(this.span);
this.span.innerHTML = new Date().toTimeString();
}
start() {
this.timer = setInterval(() => this.span.innerHTML = new Date().toTimeString());
}
end() {
clearInterval(this.timer);
}
}
}
JSTimer.js文件
var div = document.createElement("div");
document.body.appendChild(div);
var obj = new Time.Test(div);
// 创建开始按钮,并绑定事件
var start_button = document.createElement('button');
start_button.innerHTML = 'start';
start_button.onclick = function () {
obj.start();
}
document.body.appendChild(start_button);
// 创建停止按钮,并绑定事件
var stop_button = document.createElement('button');
stop_button.innerHTML = 'stop';
stop_button.onclick = function () {
obj.stop();
}
document.body.appendChild(stop_button);
time.html文件
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script src="Timer.js"></script>
<script src="JSTimer.js"></script>
</body>
</html>
注意:编写的是
Timer.ts
引入的是编译之后的Timer.js
直接运行我们可以看到
点击
start
按钮 每个 500毫秒
更新一次时间,点击 stop
按钮 停止更新时间
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