记一次使用easyui-treegrid数据层级展示问题

treegrid的数据必须是一个jsonarray格式的数据 [{"date":"2019-12-18","children":[{"date":"2019-12-18-1","channelName":"ESPN","type":0}],"type":10},{"date":"2019-12-19","children":[{"date":"2019-12-19-1","channelName"

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