40 lines
847 B
HTML
40 lines
847 B
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>事件</title>
|
|
</head>
|
|
<body>
|
|
|
|
<!-- <button onclick="test()">点我1</button> -->
|
|
|
|
|
|
<button class="two">点我2</button>
|
|
|
|
<!-- <button class="three">点我3</button> -->
|
|
|
|
</body>
|
|
|
|
<script>
|
|
// 1
|
|
// function test() {
|
|
// alert("hahha")
|
|
// }
|
|
|
|
// 2
|
|
// document.querySelector(".two") 返回的是一个js对象
|
|
// 虚拟 dom
|
|
document.querySelector(".two").onclick = function (event) {
|
|
console.log(event);
|
|
alert("哈哈哈1")
|
|
}
|
|
|
|
// // 3
|
|
// document.querySelector(".three").addEventListener('click', function () {
|
|
// alert("1")
|
|
// })
|
|
|
|
</script>
|
|
</html> |