说明：代码取自网络，注释为笔者学习时添加

    
                  
        <script type="text/javascript">    var i = iResult = 0    function sum()    {        for (var i = 0; i < arguments.length; i++)        {            iResult += arguments[i]        }        return iResult    }        //应用    alert(sum(1,2,3,4,5,6,7,8,9,10)) //输出55</script>