<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">
<html xmlns=\"http://www.w3.org/1999/xhtml\">
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
<title>10进制<-->2进制</title>
</head>
<body>
Decimal:
<input type=\"text\" id=\"decimal\" />
<input type=\"button\" value=\"to Binary\" onclick=\"return toBinary();\" /> <br />
Binary:
<input type=\"text\" id=\"binary\" />
<input type=\"button\" value=\"to Decimal\" onclick=\"return toDecimal();\" />
<script type=\"text/javascript\">
var d = document.getElementById(\'decimal\');
var b = document.getElementById(\'binary\');
function toBinary() {
var num = d.value;
if (isNaN(num) || !num) {
d.value = \"\";
return false;
}
b.value = (parseInt(num)).toString(2);
}
function toDecimal() {
var num = b.value;
if (isNaN(num) || !num) {
b.value = \"\";
return false;
}
d.value = parseInt(num, 2);
}
</script>
</body>
</html>
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