JQuery 模拟表单提交

var form = $("<form method='post'></form>");
var input;
var url = '';
var params = {};
form.attr({"action":url});
$.each(params,function (key,value) {
    input = $("<input type='hidden'>");
    input.attr({"name":key});
    input.val(value);
    form.append(input);
});
$(document.body).append(form);
form.submit();