Error in callback for watcher "data": "TypeError: children.indexOf is not a function" found in
关于Error in callback for watcher “data”: "TypeError: data.indexOf is not a function"的错误说明 原因：显示需要数组包含对象的形式，每个对象是一行数据，拿到的数据格式不对。 错误例子： 从后台获取数据res.data,显示在树中。数据，且都为空。 报三个错，如下： 经过打印res.data之后才知道，后台返回的res.
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