使用jquery提交form表单并自定义action

$(function () {
$("#btn").click(function () {
var usercode = $("#UserCode").val();
var verifycode = $("#Verifycode").val();
if ($.trim(usercode) == "" || $.trim(verifycode) == "") {
alert(" 您的[客户号]或者[验证码]必须填写！");
return false;
}
else {
document.SearchForm.action = '/index/Search?u=' + usercode;
document.SearchForm.submit();
}
});
});

<form id="SearchForm" name="SearchForm" method="post">
……
</form>