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暖心的问候: 再加一层就不行了，什么情况？ // 做源数据 String citysJsonStr = "[{\"name\":\"区域表\",\"code\":\"org\",\"parent\":null},{\"name\":\"河北\",\"code\":\"hebei\",\"parent\":\"org\"},{\"name\":\"石家庄\",\"code\":\"shijiazhuang\",\"parent\":\"hebei\"}" + ",{\"name\":\"张家口\",\"code\":\"zhangjiakou\",\"parent\":\"hebei\"},{\"name\":\"邯郸\",\"code\":\"handan\",\"parent\":\"hebei\"}" + ",{\"name\":\"保定\",\"code\":\"baoding\",\"parent\":\"hebei\"},{\"name\":\"北京\",\"code\":\"beijing\",\"parent\":\"org\"}" + ",{\"name\":\"朝阳区\",\"code\":\"chaoyangqu\",\"parent\":\"beijing\"},{\"name\":\"海淀区\",\"code\":\"haidianqu\",\"parent\":\"beijing\"}]";