PrimeNg Angular9 我正在使用 p-tree 自定义 api 并且它不工作

Question

我正在尝试用自定义 api 填充 p-tree [值] 我该如何使用模板来完成。 这是 api

0: {company: "abc", name: "testGroup1",…}
company: "abc"
id: 1
name: "testGroup1"
subGroups: [{parentId: 1, name: "Business support division", id: 1}, {parentId: 1, name: "campaign", id: 3}]
0: {parentId: 1, name: "Business support division", id: 1}
id: 1
name: "Business support division"
parentId: 1
1: {parentId: 1, name: "campaign", id: 3}
id: 3
name: "campaign"
parentId: 1
1: {company: "abc", name: "testGroup2", subGroups: [{parentId: 2, name: "Billing", id: 2}], id: 2}
company: "abc"
id: 2
name: "testGroup2"
subGroups: [{parentId: 2, name: "Billing", id: 2}]
0: {parentId: 2, name: "Billing", id: 2}
id: 2
name: "Billing"
parentId: 2```

Answer 1

现在我不知道如何显示 testGroup1 的子项（即subGroups ）和 testGroup2 的子项并显示图标