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event.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>事件绑定</title>
<script src="js/jquery-3.3.1.min.js"></script>
<script>
// 给bt按钮添加单击事件
window.onload = function () {
//1.获取bt按钮
$("#bt").click(function () {
alert("window.onload 中的bt被点");
});
}
//jquery入口函数(dom文档加载完成之后执行该函数中的代码)
$(function () {
//1.获取bt按钮
$("#bt").click(function () {
alert("$(function () 的bt被点")
});
});
/*
window.onload 和 $(function) 区别
* window.onload 只能定义一次,如果定义多次,后边的会将前边的覆盖掉
* $(function)可以定义多次的。
*/
function fun1(){
alert("function fun1");
}
function fun2() {
alert("function fun2");
}
window.onload = fun1;
window.onload = fun2;
$(function(){
alert("$(function()1");
});
$(function(){
alert("$(function()2");
});
$(function () {
$("#div1").css("backgroundColor", "pink");
$("#div2").css("background-color", "red");
});
</script>
</head>
<body>
<div id="div1">div1 ... </div>
<div id="div2">div2 ... </div>
<input type="button" value="点我呀" id="bt">
</body>
</html>