<!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>
<div id="wrap"></div>
<script>
var a = 10;
var b = "abc";
var c = true;
var d;
// typeof 操作符在处理null数据的时候返回"object"
var e = null;
var f = {};
var g = [];
var h = document;
// typeof 操作符在处理null数据的时候返回"function"
var i = function(){};
console.log(typeof a);
console.log(typeof b);
console.log(typeof c);
console.log(typeof d);
console.log(typeof e);
console.log(typeof f);
console.log(typeof g);
console.log(typeof h);
console.log(typeof i);
</script>
</body>
</html>
Python3Turtle