<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script type="text/javascript">
function a(){
var start = 0;
function b(){
return start++;
}
return b;
}
var inc = a();
console.log(inc());
console.log(inc());
console.log(inc());
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script type="text/javascript">
function Person(name){
var age;
function setAge(n){
age = n;
}
function getAge(){
return age;
}
return {
name:name,
setAge:setAge,
getAge:getAge
}
}
var p1 = Person(‘ssj‘);
p1.setAge(22);
console.log(p1.getAge());
</script>
</body>
</html>
原文：https://www.cnblogs.com/angdh/p/13973964.html