回车即提交from表单数据

<form method="post" action="/xxxxx/" id="myform" onchange="submitForm_host_filter()">
  {% csrf_token %}
  <input style="width: 250px;height: 30px;border-radius: 7px;border: 0px;background-color: #e2e2f5;" placeholder="Filter: ip |实例id |name" name="host_filter" value="{{ host_filter }}">
</form>

function submitForm_host_filter(){
    //获取form表单对象,提交选择项目
    var form = document.getElementById("myform");
    form.submit();//form表单提交
}