antd vue 这里tree控件默认选中为什么不行？

Question

简略了一下代码
感觉不错啊，不应该选中id 527,530 的数据吗，谢谢各位啦

<a-tree 
   :replaceFields="replaceFields" 
   v-model="checkedKeys" 
   default-checked-keys="[527,530]" 
   :tree-data="permission" 
   />

// 节点替换
replaceFields: {
          children: 'children',
          title: 'name',
          key: 'id'
        },

// 数据
[{
        "id": 527,
        "name": "权限测试1",
        "pid": 0,
        "pids": "0,",
        "description": "permission1",
        "children": [{
                "id": 530,
                "name": "权限测试1-1",
                "pid": 527,
                "pids": "0,527,",
                "description": "permission1-1",
                "children": [{
                        "id": 531,
                        "name": "权限测试1-1-1",
                        "pid": 530,
                        "pids": "0,527,530,",
                        "description": "permission1-1-1",
                        "children": null
                    },
                    {
                        "id": 533,
                        "name": "权限测试1-1-2",
                        "pid": 530,
                        "pids": "0,527,530,",
                        "description": "permission1-1-2",
                        "children": null
                    }
                ]
            },
            {
                "id": 532,
                "name": "权限测试1-2",
                "pid": 527,
                "pids": "0,527,",
                "description": "permission1-2",
                "children": null
            }
        ]
    },
    {
        "id": 528,
        "name": "权限测试2",
        "pid": 0,
        "pids": "0,",
        "description": "permission2",
        "children": null
    }
]

Answer 1

尝试 toString()

Answer 2

default-checked-keys 前面需要加冒号，说明后面的是一个变量或者表达式

Answer 3

其实两天也是遇到这种问题,还没来得详细看到底是为什么不行,不过在调试的时候发现:
使用v-model 绑定时 直接把 选中的值 给checkedKeys

<a-tree 
  :replace-fields="replaceFields" 
  v-model="checkedKeys" 
  :tree-data="permission" 
  />
  data中checkedKeys:[532]

不用v-model时 给defaultCheckedKeys绑定值 是可以的

<a-tree 
  :replace-fields="replaceFields" 
  :default-checked-keys="[532]" 
  :tree-data="permission" 
  />

官方例子中也没有发现两个同时使用的情况