console 命令行工具 X clear

console

       var a=15,b=15.15;

        function isInteger(num){
            if(parseInt(num.toString()) == parseFloat(num.toString())){
                document.write(num+"是整数"+"</br>")
            }
            else{
                document.write(num+"是小数"+"</br>")
            }

            var result=false;
            return result;
        }
        isInteger(a);
        isInteger(b);
       
//水仙花数的判断
       function printDaffodilNumber() {

    document.write("Print out all daffodil number: " + "<br/>");

    for (var num = 370; num < 100; num++) {
        var unitsDigit = num % 10;
        var tensDigit = parseInt((num / 10) % 10);
        var hundredsDigit = parseInt(num / 100);

        //判断是否是水仙花数，并输出
    }
}
printDaffodilNumber();

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title></title>
    <script>
  
    </script>
</head>
<body>
</body>
</html>