递归解决思路

递归

JScript code

function factorial(num){    if (num < = 1){        return 1;    }else{        return num * argumets.callee(num-1);    }}var anotherFactorial = factorial;factorial = null;alert(anotherFactorial(4));为何运行时没结果

JScript code

    <script type="text/javascript">        function factorial(num) {            if (num <= 1) {                return 1;            } else {                return num * arguments.callee(num - 1);//这里有拼写错误arguments            }        }        var anotherFactorial = factorial;        factorial = null;        alert(anotherFactorial(4));    </script>
[解决办法]
JScript code
function factorial(num){    if (num <= 1){//前面是<=，不能写成< =        return 1;    }else{        return num * arguments.callee(num-1);//写错了arguments，你少写了个n    }}
[解决办法]
探讨

if (num < = 1) // 应该是if (num <= 1) 
说实在我有点看不懂你的代码为什么那样写。也不知道你是不是想实现1x2x3x....xN的结果。如果是的话应该写：