如何在ansible中循环包含列表的多个列表

Question

我的问题是我有一个列表，其中包含一个列表，该列表也包含一个列表，我有这个

Toast.makeText(MainActivity.this,action + "", Toast.LENGTH_LONG).show();

但是如果我有该怎么办：

---
- hosts: localhost
  gather_facts: no
  vars:
    families:
      - surname: Smith
        children:
          - name: Mike
            age: 4
          - name: Kate
            age: 7
      - surname: Sanders
        children:
          - name: Pete
            age: 12
          - name: Sara
            age: 17

  tasks:
    - name: List children
      debug:
        msg: "Family={{ item.0.surname }} Child={{ item.1.name }} Age={{ item.1.age }}"
      with_subelements:
        - "{{ families }}"
        - children

我尝试了 --- - hosts: localhost gather_facts: no vars: families: - surname: Smith children: - name: Mike age: 4 nicknames: - inside: XXX outside: YYY - name: Kate age: 7 nicknames: - inside: XXX outside: YYY - surname: Sanders children: - name: Pete age: 12 - name: Sara age: 17 nicknames: - inside: XXX outside: YYY ，其中包含3个条目，如下所示：

with_subelement

但是它没有用，并且给出了：

 tasks:
    - name: List children
      debug:
        msg: "Family={{ item.0.surname }} Child={{ item.1.name }} Inside-nickname={{ item.2.inside }}"
      with_subelements:
        - "{{ families }}"
        - families.children
        - families.children.nicknames

有没有什么想法可以遍历列表，而遍历列表又可以遍历列表？