JavaScript十进制转换成二进制代码

JavaScript十进制转换成二进制代码

<script type="text/javascript">
        function ConvertToBinary(dec) {
            var bits = [];
            var dividend = dec;
            var remainder = 0;
            while (dividend >= 2) {
                remainder = dividend % 2;
                bits.push(remainder);
                dividend = (dividend - remainder) / 2;
            }
            bits.push(dividend);
            bits.reverse();
            return bits.join("");
        }
    </script>

实用范例

    <input type="text" id="txtDec" />
    <input type="button" value="Convert" onclick="document.getElementById('spBin').innerHTML=ConvertToBinary(document.getElementById('txtDec').value);" />
    <span id="spBin"></span>