SOURCE

function printDaffodilNumber(){
    document.write("Print out all daffodil number: " + "<br/>");
    for (var num =100 ; num <1000 ; num++) {
        var a = num % 10;
        var b = parseInt((num / 10) % 10);
        var c = parseInt(num / 100);

        //判断是否是水仙花数，并输出
        if(num == a*a*a+b*b*b+c*c*c){
            document.write(num+"<br/>");
        }
    }
}

printDaffodilNumber(); 

function num(a,b){
    var c=a*b;
    return c;
}
var result=num(5,6);
document.write(result);