<form id="form">
<input type="text" name="username" value="admin" />
</form>
<script>
function formser(form) {
var form = document.getElementById(form);
var arr = {};
for (var i = 0; i < form.elements.length; i++) {
var feled = form.elements[i];
switch (feled.type) {
case undefined:
case 'button':
case 'file':
case 'reset':
case 'submit':
break;
case 'checkbox':
case 'radio':
if (!feled.checked) {
break;
}
default:
if (arr[feled.name]) {
arr[feled.name] = arr[feled.name] + ',' + feled.value;
} else {
arr[feled.name] = feled.value;
}
}
}
return arr
}
var myForm = new formser("form");
console.log(typeof myForm.username);
//结果：admin
</script>
