<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
body {
font-family: "Microsoft YaHei", serif;
}
body, dl, dd, p, h1, h2, h3, h4, h5, h6 {
margin: 0;
}
ol, ul, li {
margin: 0;
padding: 0;
list-style: none;
}
img {
border: none
}
</style>
</head>
<body>
<select name="" id="">
<option value="">001</option>
<option value="">002</option>
<option value="">003</option>
<option value="">004</option>
<option value="">005</option>
<option value="">006</option>
<option value="">007</option>
</select>
<script>
let select = document.querySelector("select");
select.addEventListener("change", f);
// 选项发生改变时触发
function f() {
console.log("change触发了");
}
</script>
</body>
</html>
Python3Turtle