<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
function f1(){
var num=10;
//函数的声明
function f2(){
console.log(num);
}
//函数调用
f2();
}
f1();
</script>
</head>
<body>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script>
function f1(){
var num=10;
//函数的声明
function f2(){
console.log(num);
}
//函数调用
f2();
}
f1();
</script>
</head>
<body>
</body>
</html>