<script type="text/javascript">
window.onload = function(){
function getByteLen(val) {
var len = 0;
for (var i = 0; i < val.length; i++) {
var a = val.charAt(i);
if (a.match(/[^\x00-\xff]/ig) != null){
len += 2;
}else{
len += 1;
}
}
return len;
}
alert(getByteLen('妈2ds'));
}
</script>
