1、代码:
<div>
<input name="ww" type="radio"value="2" />2
<input name="ww" type="radio"value="4" />4
<input name="ww" type="radio"value="8" />8
<input name="ww" type="radio"value="10" />10
<input name="ww" type="radio" value="16" />16
</div>
<div>
<span>输入转换的值</span>
<input id="ww" type="text" />
</div>
<div>
<span>转换后的结果</span>
<input id="www" type="text" />
</div>
<button onclick="ww()">按钮</button>
//功能代码:
<script>
function ww() {
var ss = document.getElementsByName("ww");
for (var i = 0; i < ss.length; i++) {
if (ss[i].checked==true) {
var q = ss[i].value;
}
}
if (q!=undefined) {
var s = document.getElementById("ww").value;
if (s!="") {
var sss = parseInt(s, q);
document.getElementById("www").value=sss;
setTimeout("history.go(0)", 5000);
} else {
alert("请输入需要换算的值")
}
} else {
alert("请选择换算的进制")
}
}
</script>