Js闭包练习2020031801

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"

"http://www.w3.org/TR/html4/strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" lang="en">

    <head>

        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

        <title></title>

        <script type="text/javascript" src="js/jquery-1.12.4.js" ></script>

    </head>

    <body>

        <script type="text/javascript">

            var add = (function(){

                var count = 0;

                return function(){

                    return count += 1;

                };

            })();

            var inner = function(count){

                return count += 1;

            };

            function test1(){

                return inner(0);

            }

            var add2 = (function(){

                var count = 0;

                return function(){

                    count = inner(count);

                    return count;

                };

            })();

//            alert(test1());

//            alert(inner(0));

            var n = 0;

            for(var i = 0; i < 5; i++){

                n = add2();

            }

            alert(n);

            /*var n = add();

            n = 0;

            for(var i = 0; i < 5; i++){

                n = add();

            }

            alert(n);*/

        </script>

    </body>

</html>
巴特西

Js闭包练习2020031801

最新文章

热门文章
