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无限级树状图可以说是无限级栏目的一个显著特征,我们接下来就来看看两种不同的写法。
& f/ [& v5 j3 J- E一.数据库设计
# I5 W5 x' s7 q, b8 _! |- CREATE TABLE `bg_cate` (
! C: t( |+ u( a# Q9 e - `cate_Id` int(30) unsigned NOT NULL AUTO_INCREMENT,
% o `5 b$ c" M" o6 } - `cate_ParentId` int(30) unsigned DEFAULT '0',( \$ S) D7 x* g: k
- `cate_Name` varchar(100) NOT NULL,* g3 V' l: `$ r0 E
- `cate_Intro` varchar(500) DEFAULT NULL,, K, O, ?# @8 R; O/ i6 O
- `cate_Order` int(30) unsigned DEFAULT '0',
- h+ b) y/ I- g3 y/ u - `cate_Icon` varchar(100) DEFAULT NULL,' _9 ^2 d+ l) q
- PRIMARY KEY (`cate_Id`)0 ~/ g- H# s1 D) M$ |
- ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=34 ;3 S3 Z: W) }" c* V0 v7 S- v
- --
' p% x6 X+ R) M - -- 导出表中的数据 `bg_cate`4 `/ i6 p8 N3 {
- --1 H: f" T$ a: S# e% J2 |
- INSERT INTO `bg_cate` (`cate_Id`, `cate_ParentId`, `cate_Name`, `cate_Intro`, `cate_Order`, `cate_Icon`) VALUES5 h0 n7 s: k: d2 E$ a" C3 k
- (4, 0, '往事如风', '记录往事', 0, 'icons/6.gif'),
3 D- ]$ ~% |. S6 x: X/ } - (5, 0, '水煮三国', '品位三国智慧', 0, 'icons/3.gif'),7 o* j) F7 o5 G7 i( H
- (2, 0, '技术学习', '平时学习的一些笔记,欢迎批评指正。', 0, 'icons/18.gif'),
) i& V, a: Q$ ] - (3, 0, '生活点滴', '记录生活点滴', 0, 'icons/2.gif'),3 o' I: w9 N: C3 L
- (6, 0, '栀子花开', '青春无限', 0, 'icons/8.gif'),
/ H+ w! B: P! s - (7, 0, '假日休闲', '悠闲、自在', 0, 'icons/24.gif'),' e. }3 ^ s6 v g! @$ E
- (8, 2, 'html', 'html学习', 0, 'icons/1.gif'),, V) i/ j- f$ W- t: [1 Q4 Y4 n
- (9, 2, 'css', 'css学习', 0, 'icons/1.gif'),, E5 m" E& c; Q8 `5 k2 k( C3 z
- (10, 2, 'php', 'php学习', 0, 'icons/18.gif'),8 n+ \) H* k. _$ O
- (11, 10, 'php基础知识', 'php基础知识', 0, 'icons/1.gif'),
3 ?: }( ?1 N+ a( ~3 N" @; M8 k - (12, 10, 'oop', 'oop', 0, 'icons/1.gif'),
; C Q0 ~! X i7 P - (13, 10, 'php安全', '讲述php安全', 0, 'icons/1.gif'),' c' v1 I% w X8 d
- (14, 10, 'seagull framework', 'seagull framework', 0, 'icons/1.gif'),
: W/ o( y9 h- y4 a - (15, 2, 'javascript', 'javascript学习', 0, 'icons/1.gif'),
3 W S: M6 M9 S/ ` - (16, 2, '设计模式', NULL, 0, 'icons/1.gif'),
$ C. T* ^1 `" g9 e2 a8 Z4 C6 K* {9 ] - (17, 2, '软件工程', '软件工程学习', 0, 'icons/1.gif'),* e A: k% \7 N: Y6 m9 F# ~
- (18, 3, '厦门生活', '厦门生活', 0, 'icons/8.gif'),* T' }7 Q; P! O9 l
- (19, 3, '大学生活', '大学生活', 0, 'icons/8.gif'),
) N q$ m J4 e" u- o$ W) ?6 d - (20, 3, '童年生活', '童年生活', 0, 'icons/15.gif'),
1 G( F l @: L - (21, 19, '学习', '学习', 0, 'icons/1.gif'),
$ F! v- e- U1 s6 L) b5 Q& |7 V5 g6 Q - (22, 19, '运动', '运动', 0, 'icons/16.gif'),. i/ C5 T- Y+ F% n
- (23, 19, '旅游', '旅游', 0, 'icons/24.gif')," z- @, R/ ]7 t0 S: T
- (24, 22, '排球', '排球', 0, 'icons/9.gif'),% z4 n4 W: Z0 V
- (25, 22, '篮球', '篮球', 0, 'icons/9.gif'),! F; s& g, Q: m F
- (26, 22, '羽毛球', '羽毛球', 0, 'icons/9.gif'), ?/ {/ c' |9 V9 {
- (27, 22, '乒乓球', '乒乓球', 0, 'icons/9.gif');
复制代码 二.到数据库取数据,放到数组。% o3 G! X; o% M6 b
- require_once './classes/MyDB.php';9 }4 ?$ S1 l0 u$ W+ j) |& g% g
- $con = MyDB::singleton();9 t9 n, ` j$ M/ _% d
- $sql = <<<SQL9 G$ w w% m' i' @8 x2 O/ n# Z
- select * from bg_cate cate# G9 r' N& y) o5 z X' l! m/ \2 y
- SQL;4 Y, P) ^$ g9 \, W- @, c
- $data = $con->getAll($sql);
! U& B" r! x; e; Y, n# w$ r3 g - //print_r($data);
复制代码 数据库操作我用的是pear类库。# A0 e3 E/ c8 U6 a
最后的$data的数据格式如下:0 M) W/ t8 a2 d% M6 Q( y
- Array
4 x D3 a8 D) Z: k - (
( {3 H: R! O T - [0] => Array# a- h7 s* x! O
- (2 w4 _. v& R; A2 T
- [cate_Id] => 4
4 P4 s, V$ a, p5 z1 \1 j - [cate_ParentId] => 0/ U; ~: G: ^. N# n
- [cate_Name] => 往事如风
2 w% ^- f" K' [ - [cate_Intro] => 记录往事
: v+ T9 Z8 W& |! S- k+ G! s - [cate_Order] => 0
4 e4 F" F0 } q( v3 y6 f - [cate_Icon] => icons/6.gif
1 v- Y$ H0 s0 i, }0 d - )
+ M% Q; Z0 Q) u( K) ] - [1] => Array7 ~/ P) _1 T: G( a/ I2 Q' {
- (
, C) {* g, ~4 L, H6 H - [cate_Id] => 55 x, x. }3 |. r8 n, ^3 C- }1 \
- [cate_ParentId] => 0! j% Z# u" e& O+ H+ ?7 m; L
- [cate_Name] => 水煮三国3 i2 X# D h( Y, N
- [cate_Intro] => 品位三国智慧) U" n1 K) y0 {: l2 @
- [cate_Order] => 0
/ [! f K7 z3 X/ W( Z/ B [ - [cate_Icon] => icons/3.gif
- i- S" n4 _7 }6 G" { - )
复制代码 三.把上一步的数据转为树型状的数组/ ~1 n! L. i! b. D! i6 m! N" P# R
代码如下:/ o, F* r8 R ^* U& q. j& G
- function getTree($data, $pId)# d% v! T) z/ w8 c$ _( B& k
- {
% ]7 z$ E& |" y! s( G5 g+ [ - $tree = '';
# M$ Q7 h1 r1 V$ ]$ j - foreach($data as $k => $v)
# D! J, B# S% A" I& l g# A - {& o) j. G. w: D
- if($v['cate_ParentId'] == $pId)4 R& t; o! w6 Q# Y" y
- { //父亲找到儿子6 V( s- A% g, ~* a3 U y$ I
- $v['cate_ParentId'] = getTree($data, $v['cate_Id']);6 H% Z# g8 B0 d& S9 h# p6 a
- $tree[] = $v; a7 `' B' S( X: g2 p! C$ r
- //unset($data[$k]); z2 M( e7 L3 f* z
- }
* O, s! L; T& p* r4 U& f. m' d5 C - }+ L; K* r3 l1 J. o" ^7 B/ R0 K
- return $tree;; x9 j2 M7 a$ P7 S; M( J) {
- }6 N, l& S+ E5 Y4 g2 u9 K
- $tree = getTree($data, 0);
复制代码 最后输出$tree的数据格式为:
+ ^/ i/ R& o# Y- Array
2 @# W8 c0 I% u5 Z/ |7 R - (
- Y9 a8 J& M- @7 u- q - [0] => Array$ d) L; Q9 a, i* Y7 [$ j# |
- (
% p0 ^1 [) }" j9 R$ g( T, u5 I - [cate_Id] => 4# d6 ?! ~1 ^/ ?) v8 D; D$ J. Z
- [cate_ParentId] =>
( O- Q2 f) q5 p9 h! d - [cate_Name] => 往事如风) k) k$ B/ U2 i( C
- [cate_Intro] => 记录往事
! }# K) @3 P" W. p, J5 q - [cate_Order] => 0
( M) b' S$ q7 [4 `3 I - [cate_Icon] => icons/6.gif
1 W" T0 w9 [' e7 T ` - )
+ U. i6 w' `. a" o - [1] => Array1 h" u* \( w+ g; M" U! x& B6 R& j
- (
) p. S# Y# }8 ^5 m, D% W7 ^2 m1 | - [cate_Id] => 5
$ t- ^! u6 X( [" h* {: ^ - [cate_ParentId] =>
$ i) s. c. y& v- |) d0 } - [cate_Name] => 水煮三国
# @5 r1 T; _ V# g - [cate_Intro] => 品位三国智慧8 Q9 H' A: }( x6 @$ @$ I/ q% ]
- [cate_Order] => 06 `. B7 Y* ~9 T. u
- [cate_Icon] => icons/3.gif
( |+ y4 }& P% O2 m; |2 v1 _, W - ); Z' |# h% E2 b+ V# w* y- n
- [2] => Array8 [3 P. O3 y+ \, D! D% ]1 I
- (
) g( m8 Y* h Y1 _, u) U3 U. Q - [cate_Id] => 2
+ u" |0 z7 {$ {7 t: R) E - [cate_ParentId] => Array
4 ^3 Z- p+ m: Z - (7 o4 c' P9 u4 B/ x2 R/ X+ e; n6 d, [8 |
- [0] => Array
4 V; _& O) B: j4 q* U2 }" | - (: d- h" T3 S' m, ^* I- M: ^
- [cate_Id] => 8& P4 o/ m3 Q& ]/ a7 n4 C
- [cate_ParentId] =>
! k# D# K( i1 ^+ J3 ]. s) l - [cate_Name] => html5 _& f8 o e9 C; }6 @ P
- [cate_Intro] => html学习
- J' z& ~ S$ m, A4 w - [cate_Order] => 0
2 H$ m4 s' I1 l6 t - [cate_Icon] => icons/1.gif' ]7 \7 ~9 e9 l. D; R4 K0 e
- )
复制代码 四.把树型状数组转为html
, B1 P0 [! Q: C- t0 s8 h4 F" @代码如下:
$ z6 N$ G3 ~. W$ B- function procHtml($tree)
3 @3 z1 s% C4 k9 X/ y7 j6 g6 y( ^7 b - { F6 [# ?) E9 j. O/ P1 C. J! F0 T
- $html = '';
, g6 r6 w2 V3 ? - foreach($tree as $t)
/ P+ `# ?, U% X8 t* V - {& g' a* s6 Y x
- if($t['cate_ParentId'] == '')
& n* a2 y/ \' M6 R - {* S6 W6 Q& j" r2 W7 {, K" t
- $html .= "<li>{$t['cate_Name']}</li>";
\, f( V A! X. [4 P- Z - }
$ D/ P) s" {3 {6 h4 a - else
2 n. o3 _" o6 s! z" B0 V& X6 ^ - {
% z( S3 M" A; N - $html .= "<li>".$t['cate_Name'];3 f+ Q- {$ w4 G* z
- $html .= procHtml($t['cate_ParentId']);
6 [6 ?( p8 k6 {0 Q' V7 P - $html = $html."</li>";
3 d* a+ _+ y Z8 e& E4 W - }
7 G$ \4 g; q- L) c! i) j0 d - }
3 y3 `& i, q; g$ I - return $html ? '<ul>'.$html.'</ul>' : $html ;2 P% H8 t5 |; t$ j
- }
; A. c3 ~# w+ V. i: Q f# w( P - echo procHtml($tree);
复制代码 输出的html的代码格式为:4 R* q& y& U/ r: V5 y3 [
- <ul>6 T; b6 |, _ i
- <li>往事如风</li>
7 w+ K9 s2 v. g/ g* ~7 Q, b. ^$ E' r - <li>水煮三国</li>
. n$ S- b% P- v P V - <li>技术学习1 s' y" D: E: W! [8 P; S- F
- <ul>/ s! z- z# T; ^. u E3 |9 u: a5 D: W% n
- <li>html</li>1 ]! }4 E& L% ?3 W* |: A. n
- <li>css</li>" } @/ ~7 r: Y4 e7 {( ^
- <li>php
3 o7 H3 ^' |3 h: k9 }" A Y0 {( K - <ul>7 ]6 f( V+ c, F2 L1 O
- <li>php基础知识</li>+ _3 }1 f: h S& H& g/ w
- <li>oop</li>
" E- G( n" @2 X' h' Q3 o4 }1 p r - <li>php安全</li>
复制代码 五.代码整合
6 ]9 H1 I4 x' ]( K o& ]- function getTree($data, $pId); o7 U6 r" h0 a; a4 G( c% F
- {9 z: @' ^9 L, T/ r/ M
- $html = '';' f9 ]' U# V8 l3 {9 s" m$ k
- foreach($data as $k => $v)# n5 m* Z5 }* Q$ y8 ` i/ o
- {
( ~6 o# j9 H p/ c! q - if($v['cate_ParentId'] == $pId)
* J3 c. \& s% L3 O6 |6 H# {( E - { //父亲找到儿子/ F6 g- ~: a. B1 M1 o- V
- $html .= "<li>".$v['cate_Name'];& y s4 U! L7 m0 U3 d
- $html .= getTree($data, $v['cate_Id']);
# D0 b& N& t5 x2 I" c q - $html = $html."</li>";
) j1 p/ V( F/ m8 Q- ?' G! u- j - }
9 P2 }' P, A( [) L) K - }0 D6 l9 f/ e' B+ g/ J8 h
- return $html ? '<ul>'.$html.'</ul>' : $html ;4 U, D o' n# Q- u1 K# y J2 A
- }* A. R( M' R9 i$ B3 u' G' |& z! `
- echo getTree($data, 0);
复制代码 六.增加CSS样式3 N6 k9 m6 _' T' s6 f" e. T: U
, F1 V+ o6 d9 a0 T7 e! a# g. l {9 m3 E
第二种是从开源网站上看到的,非常非常的简介。( |" D' v, j" Y8 O" X. T/ l/ |) I
- <?php: H z% u4 `6 @. K9 n
-
1 \, p! h s) L1 F, _+ q- ^" B - function genTree5($items) { 7 y0 N- B4 v% `3 G d, k
- foreach ($items as $item)
8 [) P+ E& _, h. ]+ a4 C2 C - $items[$item['pid']]['son'][$item['id']] = &$items[$item['id']];
) c8 e& x7 {' h4 Q2 Z- p4 Q - return isset($items[0]['son']) ? $items[0]['son'] : array(); 0 Y; z8 r) W% A/ o% ?8 j5 T
- }
9 K2 w G8 O5 w* r -
9 y( i* ~+ L1 c( [2 }1 y - /**
$ ?4 R% q" T3 W: c% f% }- h8 a - * 将数据格式化成树形结构0 h/ m9 [4 L+ _, ~8 |* T
- * @author Xuefen.Tong: N8 W* x- W5 [
- * @param array $items# i+ e+ r; S9 V
- * @return array
1 y: `' T( ~& L: T2 p - */
( f5 O5 a! G" S/ [. o5 i/ }5 C, @ - function genTree9($items) {7 f C8 N, v5 D& M! K
- $tree = array(); //格式化好的树$ i3 X# v. W* {; Y4 |3 w
- foreach ($items as $item), H6 S. }: m; @: p
- if (isset($items[$item['pid']])), i( Z+ O5 k& g0 h8 m9 u. i) U
- $items[$item['pid']]['son'][] = &$items[$item['id']];- T0 p% M! S0 @ L2 P1 Y
- else6 n( h9 _# {( x$ M: b
- $tree[] = &$items[$item['id']];
. A" k7 U' f: l. T0 b, o+ e: _- y - return $tree;
. n1 F' W7 w, Q6 v - }" f/ }/ [0 v: j; V
-
$ W9 S4 o- @, S! M% L1 [% { - $items = array(& }4 j. V# m5 g. R
- 1 => array('id' => 1, 'pid' => 0, 'name' => '江西省'),8 s: w. O0 v8 s( B, l7 U0 {
- 2 => array('id' => 2, 'pid' => 0, 'name' => '黑龙江省'),
2 m: G2 M$ H- @7 o# g% a+ @; c( G! A - 3 => array('id' => 3, 'pid' => 1, 'name' => '南昌市'),
4 ], R% r+ L4 L2 @ - 4 => array('id' => 4, 'pid' => 2, 'name' => '哈尔滨市'),
( u9 y0 O; M) G; ?+ n3 ^ - 5 => array('id' => 5, 'pid' => 2, 'name' => '鸡西市'),, ]4 p _/ s- {9 @9 m
- 6 => array('id' => 6, 'pid' => 4, 'name' => '香坊区'),
. Q' S6 T8 ?6 k0 s! W+ `7 P7 ? - 7 => array('id' => 7, 'pid' => 4, 'name' => '南岗区'),0 ^9 }9 C- N: m. O6 F, v8 ^7 Q! v
- 8 => array('id' => 8, 'pid' => 6, 'name' => '和兴路'),8 T2 ~3 u/ `' d
- 9 => array('id' => 9, 'pid' => 7, 'name' => '西大直街'),- a& g' Z, n6 ~' L$ O3 n
- 10 => array('id' => 10, 'pid' => 8, 'name' => '东北林业大学'),. b. J+ M5 f2 F2 Q
- 11 => array('id' => 11, 'pid' => 9, 'name' => '哈尔滨工业大学'),% V+ o: Q$ I9 S6 |! D0 s* o
- 12 => array('id' => 12, 'pid' => 8, 'name' => '哈尔滨师范大学'),
\8 ~$ `3 ~8 ]% M$ Q - 13 => array('id' => 13, 'pid' => 1, 'name' => '赣州市'),
, a* j6 s2 k! i - 14 => array('id' => 14, 'pid' => 13, 'name' => '赣县'),
, `1 j: q. H0 N" p, b# T8 q - 15 => array('id' => 15, 'pid' => 13, 'name' => '于都县'),: O: S4 P7 v/ H, [
- 16 => array('id' => 16, 'pid' => 14, 'name' => '茅店镇'),2 D. V: V7 m9 c( K- x( |! u
- 17 => array('id' => 17, 'pid' => 14, 'name' => '大田乡'),2 C4 R L! J# r1 h
- 18 => array('id' => 18, 'pid' => 16, 'name' => '义源村'),
2 S# z5 g% y% Y3 c - 19 => array('id' => 19, 'pid' => 16, 'name' => '上坝村'),; p# X" ~9 J+ P! N& w* y8 K6 H
- );
) Y' \$ k3 d" @7 m2 b - echo "<pre>";6 o2 @8 D3 _8 S9 t& v
- print_r(genTree5($items));
! H) U, v* o( y - print_r(genTree9($items));
; X( _8 a/ {2 D - ! i! D3 D, [& e& ]' A8 b( z
- //后者输出格式,前者类似,只是数组键值不一样,不过不影响数据结构' J( L0 Z" x" q; t% C8 e$ D2 P
- /*$ M5 l; x' x0 d( e7 F+ x) [
- Array
6 U. {, b0 @) r3 E! E - (
8 {* K$ J6 ^) j: X" M2 ~# P - [0] => Array
# T! X# Q# w6 \ I& B" t. U - (% r# x- u9 I' m, s" x
- [id] => 1% h- V) ~2 b* T8 s
- [pid] => 0, C* u$ e! W; O5 Q
- [name] => 江西省
- e5 N8 W/ t' I2 ]4 }$ s4 G - [son] => Array
2 V% a: t- V- M) ]* L - (
+ F" U' X2 H5 A - [0] => Array8 e" K9 h9 A- y9 n% s
- (
* R; \- X/ z: G# g( ~$ S6 V2 J - [id] => 3
) L" a, p. \; ^! ~% d - [pid] => 1
# n" i2 ?5 q& i. ^/ M* U - [name] => 南昌市! U1 z6 I0 ]5 O
- )9 q3 [' W( i* v
-
4 B" ]& z1 y' ]+ k& X - [1] => Array* g' g/ |: \! N7 x. Q$ G+ M
- (
( x; I0 ]& c$ x - [id] => 13: \& I9 e$ |' b2 u6 I7 F, S9 s4 W
- [pid] => 1# r0 W- s4 A' l0 k3 _# k% I
- [name] => 赣州市
& b1 | b8 f" o/ ^, P4 A4 L$ X - [son] => Array) p: o" a% d, ~$ N' u! n( A- _' k
- (
- [* I: y1 t* X7 [ - [0] => Array
; C2 I' I; N$ k' x* J, L$ y - (3 g) o/ T8 ?; L+ R
- [id] => 14# X$ F. `9 U0 d" V a
- [pid] => 132 X8 T# u) _3 ~6 N' Z) d
- [name] => 赣县$ b* ?( l1 u1 U1 ?1 A6 s0 G
- [son] => Array1 r m* Y+ U, e* ^! i# [" t0 s
- (
( f9 T: m% b/ a9 {5 n4 _' Z - [0] => Array* v- x$ m. u9 N5 v; U; K1 S
- (
) g3 {% J4 h) ^$ v; b - [id] => 163 y$ T% d% |/ e; u: v' `0 i2 h9 B
- [pid] => 14/ X3 [3 s8 q1 s2 `
- [name] => 茅店镇! K$ s; ?% r; h
- [son] => Array6 C& U% U% I8 n4 e7 r' ?1 t
- (* ]1 W1 B Z! L' q ~6 }
- [0] => Array; U- P5 o& k& h9 Q7 s* x: m9 i
- (
& j# e. E. N, b/ h3 q - [id] => 18
8 ]: n4 g! d7 X' \4 u0 D. { - [pid] => 16+ n0 B5 q* ?- Q4 h; M* J
- [name] => 义源村$ j* B7 {+ X- O, @9 E
- )
$ A' X* O8 n2 r% x0 [( p -
0 y2 r1 Y4 c! P3 u" w) f - [1] => Array- g4 F; g# M; r" A' T( |
- (
" V# Q- ?1 M' h& y& V - [id] => 19, a) h+ \4 @7 F2 @
- [pid] => 16
( g% p' u# t0 ]. _# m - [name] => 上坝村
4 u8 L/ _# D; p/ D2 X. d7 z Y: E8 O - )
' T" L3 m! T( A2 h0 ? -
0 F, n1 Y0 p9 W! _ - )
1 q0 E5 D- B! Q5 E6 W - ; P, b, ]0 o% F* C, t# V
- )
' T% D& } _' N, j -
6 Y( z4 t. k- K) X1 W4 l; P - [1] => Array
- t1 z3 o( @; G1 v9 [% n# w) e - (
: D! d* M- x6 _9 e. Q) F( ~ - [id] => 17
' f! d7 B/ ]+ N0 ?8 Z: M$ S7 j: U+ F - [pid] => 14
; x1 J) K% y8 l% j' y: g( E. e4 U - [name] => 大田乡
- n2 i; p2 [) ? - )
- D* M! G2 Q0 D+ v - 4 R4 ?/ c8 k* w l8 `+ O' x
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-
2 G5 p5 m, m. D& ]) M - )
w/ x( e' v- }6 M% X( E) G -
, P& w5 M- C5 l* L+ b7 i P' } - [1] => Array* a0 i4 C1 z2 u' C0 I1 ^
- (- b# g: E- A9 D" x
- [id] => 15% i9 `2 ^0 T, R) J1 I; ~* J
- [pid] => 13& ~" a& d! _* r! w& y. J, v/ |
- [name] => 于都县
9 ~' E3 S9 E+ P& a# M - ), Q- B* }. R5 i+ l1 O' q; F1 ^
- % O/ c4 a- I! e5 @, G# C
- )
0 n0 L2 N9 \* z/ V% A; g -
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-
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9 @3 f6 E" `8 O3 m! X) |9 t9 F - )
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6 A% z" R- J, r. D - [1] => Array1 {( H: [4 z& v" I* J
- (
# @3 D0 A1 h* M8 n - [id] => 2: p3 z% b8 ?1 m9 F
- [pid] => 00 f$ E/ A% B' f; J
- [name] => 黑龙江省
. ^3 C" B' k/ h' `0 l - [son] => Array
# E1 _! A8 f6 a8 r - (
6 |9 L9 P$ f1 P- {* f, d - [0] => Array
2 N0 u/ h& M- ] - (" E9 v5 @2 D/ g* @5 ]" b" {" _
- [id] => 40 X! I% e$ T" O! s- f" J- d& K
- [pid] => 2
& X# F9 P8 D% e+ Q/ q$ j - [name] => 哈尔滨市1 t7 \2 Z% K0 F) O) ]9 g
- [son] => Array2 I: j( f% \( n& d b
- (
$ f o9 {, ]0 \& @+ E! N+ ` - [0] => Array
2 w8 l8 ]7 U4 v5 s4 a* V - (1 x6 E; D2 p) W4 u8 J9 \, b5 i* L
- [id] => 6. ~# u& i8 n6 r1 v
- [pid] => 40 n, ]% ~) T. |7 T% G& m/ k1 ]
- [name] => 香坊区6 N6 ]9 p7 \; K; I
- [son] => Array
; T' O1 v5 Z5 |7 j X - (% L( n8 I* U; T" k
- [0] => Array
% M, y$ K3 q$ n - ( y7 z1 E" `8 o% W4 Q4 ] ~! Z! R
- [id] => 8+ ]6 r: V( @$ D% f/ k! u6 ?8 H P
- [pid] => 6
4 J9 Y. }0 x3 A1 {; [+ B3 E - [name] => 和兴路
# `$ m) Y' v: h; j5 m. b1 ` - [son] => Array' c$ d. N: _& F. a
- (
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( f3 J; D! d" C1 Z1 i k6 Z: ]0 e2 o - (" `* D* L1 O/ V1 s# B
- [id] => 10
+ o: o0 X ] v( P. q - [pid] => 8' z2 ~: j, u* N4 F- ?5 ]0 X. @9 [
- [name] => # ^0 ]( _- R2 F0 u
- 东北林业大学
- i5 y) b( k. O! {# j - )
2 S: \; k% V5 n- H& g4 z/ J' w* B - & [# c, Q1 W8 e
- [1] => Array# _' R& L. X' u# \% K3 A, K
- (, V% L) `1 i, _+ P+ h0 O
- [id] => 12
: h, E1 N& A& \2 U: D. K - [pid] => 8 J0 m$ K# `1 Y$ ` c5 d' `
- [name] => * r5 r5 v# c# K, S& {/ {
- 哈尔滨师范大学
; B/ H3 _" A" ^3 |7 ?9 R - )
7 d& N: }! D# o, h0 U - - L1 u$ d* K, ~' d9 ~- O0 |
- )
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4 B6 W! k; N+ t2 G3 I7 _ - )
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- )
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5 R& t# B6 ^# i1 G1 u& o - )
4 P# T' ]; ]% B! a1 g -
# T; J5 u% c6 \+ g( W8 J# E - [1] => Array
. Y, ~! r7 J) ^+ G' E- T - (& R( ~! g; Q! x
- [id] => 7% D# i$ O' C7 {) o6 e. a
- [pid] => 4
( h+ I$ K& y t& }5 Y& d - [name] => 南岗区# {7 G( H1 M( K6 z" b% ^! M
- [son] => Array
2 t d+ ]* C' {7 e$ u# u3 D - (- T+ j2 g! o; j, Q' E
- [0] => Array
+ f6 Y! a# r$ v - (3 V- v& z! {5 s1 z2 k/ B0 a
- [id] => 91 ~; h4 G4 l7 y5 \' M# R! f
- [pid] => 77 g, j# j+ G, i
- [name] => 西大直街
1 M; r& f, `" d" K4 h; ~ - [son] => Array# I' Y" R- [8 l) v7 G5 z
- (
) e4 ?: b- {$ P8 S% @2 e2 f+ _7 x' O - [0] => Array
8 n7 k, |& O9 L: @8 Z9 O J - (
, Z5 h) G- K2 q% U& p1 T - [id] => 117 [: B6 Y1 k k% _3 r0 {
- [pid] => 9
, K# q' W' h- I, Q. a& L- V& | - [name] =>
: @8 t: D0 P3 E z - 哈尔滨工业大学6 F! x9 u: t: P
- )
1 N, {2 R: G/ a! b1 v. \ -
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6 {. {- C. n4 ^5 p- V" A - 9 `' h5 O1 y3 ?4 i
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- )
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-
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- [1] => Array3 }% r3 p t* _
- (
$ }6 B- D7 I- ^1 |9 r3 h5 ? - [id] => 5
- A C6 N$ U, G8 @ - [pid] => 2
; @$ \1 z# M+ G S - [name] => 鸡西市7 q4 w2 m) B6 O9 V) \8 f
- )
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- )*/
复制代码 可以看出第二种代码只用了5行代码就实现了无限级的分类树,非常值得大家的借鉴和学习。5 C& a; A2 F2 d5 Y! R
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