javascript创建＜form＞对象并提交

var form = document.createElement('form');
form.action = 'gosomewhere';
form.method = 'post';      
    
var input = document.createElement('input');
input.type = 'hidden';
input.name = 'platoonCode';
input.value = patooncode;
    
form.appendChild(input);   
$(document.body).append(form);
form.submit();