publicclassTreeNode { privateintid;//主鍵ID privateintpid;//父節(jié)點ID privateObject content;//節(jié)點內(nèi)容 privateList<TreeNode> children =newArrayList<TreeNode>();//子孫節(jié)點 publicTreeNode(intid, Object content) { this.id = id; this.content = content; } publicTreeNode(intid,intpid, Object co...
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