var data = $('.bbbb'). SerializeObject ()) the values of all forms should be put together here, and there is no grouping storage for different forms.
it is recommended that https://github.com/marioizqui. should be converted to json,

pseudo code is something like this

var datas , data;
$('.bbbb').each(function(){
    data = serializeJSON($(this));
    datas.push(data);
})
//datas data; 

JSON.stringify No need

$.fn.serializeObject = function(){
  var result = []
  $(this).each(function(){
    var obj = {}
    $($(this).serializeArray()).each(function(){
      obj[this.name]=this.value;
    })
    result.push(obj);
  })
  return result;
}

Thank you, it has been solved. Here's my solution:
when a form is serialized:

:

where $(".xxx _ form") is the class, of the form (because the id value is unique, so use the class selector here), the key is to traverse the content

json.push ($(this). SerializeObject ()); this $(this) is the key to solving this problem and what I overlooked.

is exactly what I want.