<!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 = 1;
var b = 1;
var c = a++;
var d = ++b;
console.log(c); //取值的时候还没有加上
console.log(d); //取值的之前就已经加上
</script>
</body>
</html>
Python3Turtle