请教php关于mysql数库库布局的问题
每个人下面排二个人，即左区右区各1人，然后往下无限延伸。请教如何每个会员能统计到自己左右区下面各自共有多少人？
回复讨论(解决方案)
这个是典型的树啊 ，二叉树，有算法的。用递归可以做到
这个是典型的树啊 ，二叉树，有算法的。用递归可以做到
帮写个数据结构和计算代码，谢谢！
编号 上级ID 金额
id sh1 jine
1001 999 49
1002 1001 20
1003 1001 29
1004 1002 10
1005 1003 12
1006 1002 10
1007 1006 4
1008 1003 17
1013 1008 8
1015 1006 6
1021 1008 9
……
1001如何得到左区1002下面ID为：1002/1004/1006/1007/1015的金额总和？
如何得到右区1003及下面的1005/1008/1013/1021的金额总和？
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