管理员
论坛积分
分
威望 点
贡献值 个
金币 枚
|
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。
! {0 \$ j- G; p) q/ L" i, r一.数据库设计- g; `, d4 o: [* @5 M! C
- CREATE TABLE `bg_cate` (: Q3 X* |8 [# X. |# Z
- `cate_Id` int(30) unsigned NOT NULL AUTO_INCREMENT,( c, V4 r: m' T u
- `cate_ParentId` int(30) unsigned DEFAULT '0',* V& t) o9 q$ \3 {" `% O# r( M
- `cate_Name` varchar(100) NOT NULL,) L0 F7 g/ `4 r2 M
- `cate_Intro` varchar(500) DEFAULT NULL,
. K; A3 e; b) |7 k - `cate_Order` int(30) unsigned DEFAULT '0',
6 W7 X. w [3 H$ z3 A - `cate_Icon` varchar(100) DEFAULT NULL,
: {! x5 {- W, s- {3 e' g( Y - PRIMARY KEY (`cate_Id`)
; V% K7 q* n, A8 j, A$ W" V& K1 i - ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=34 ;
% X+ u+ ?% T) W4 s - --3 ?% F+ y/ x" M2 X
- -- 导出表中的数据 `bg_cate`5 r4 d G; k" L1 n; e" q' i' q r
- --
2 a* m! M1 p9 [ [9 b9 r) Y - INSERT INTO `bg_cate` (`cate_Id`, `cate_ParentId`, `cate_Name`, `cate_Intro`, `cate_Order`, `cate_Icon`) VALUES3 \- Y9 j6 ]5 E: u- H
- (4, 0, '往事如风', '记录往事', 0, 'icons/6.gif'),) j- {* c. h/ Y& V. N$ k
- (5, 0, '水煮三国', '品位三国智慧', 0, 'icons/3.gif'),
7 c4 j# \- @. X( g/ A0 [ - (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'),
8 Z. X! ] z2 }1 |5 W& j& K4 b - (3, 0, '生活点滴', '记录生活点滴', 0, 'icons/2.gif'),
& J$ l8 H: x% g% t/ f+ z' o - (6, 0, '栀子花开', '青春无限', 0, 'icons/8.gif'),
# [+ _+ M! U& _( j" f/ G+ u - (7, 0, '假日休闲', '悠闲、自在', 0, 'icons/24.gif'),
" Q* N1 f I8 I/ J9 X - (8, 2, 'html', 'html学习', 0, 'icons/1.gif'),
# B& C j# j# S5 B - (9, 2, 'css', 'css学习', 0, 'icons/1.gif'),
, j; b" W) D4 @6 _6 T+ P# L - (10, 2, 'php', 'php学习', 0, 'icons/18.gif'),
- j E( r5 O4 O6 m( V& M - (11, 10, 'php基础知识', 'php基础知识', 0, 'icons/1.gif'),
4 Q, H# `+ L4 V: d1 Y - (12, 10, 'oop', 'oop', 0, 'icons/1.gif'),
' F* T8 G1 O+ j* L" y; C: S - (13, 10, 'php安全', '讲述php安全', 0, 'icons/1.gif'),
. e5 Y; w# s. Q6 M - (14, 10, 'seagull framework', 'seagull framework', 0, 'icons/1.gif'),8 ^9 u+ H# `: _4 o
- (15, 2, 'javascript', 'javascript学习', 0, 'icons/1.gif'),/ p. x; ~ e5 {9 a9 b
- (16, 2, '设计模式', NULL, 0, 'icons/1.gif'),( |2 |* X+ P. D: g0 D) h/ A1 B
- (17, 2, '软件工程', '软件工程学习', 0, 'icons/1.gif'),& y' K3 u( j; X+ ^
- (18, 3, '厦门生活', '厦门生活', 0, 'icons/8.gif'),7 c8 W& O |- Y0 @! I1 b
- (19, 3, '大学生活', '大学生活', 0, 'icons/8.gif'),( L1 X- N) b g6 I6 S
- (20, 3, '童年生活', '童年生活', 0, 'icons/15.gif'),1 y: P% z7 b8 g- U
- (21, 19, '学习', '学习', 0, 'icons/1.gif'),
3 D$ j3 a! A! ^4 h - (22, 19, '运动', '运动', 0, 'icons/16.gif'),, S6 i) {& G8 r$ h9 w
- (23, 19, '旅游', '旅游', 0, 'icons/24.gif'),; }3 `3 Q: j7 e$ p9 h/ z- P) v( n- B
- (24, 22, '排球', '排球', 0, 'icons/9.gif'),
! X8 J+ F1 M. x( B7 a* w - (25, 22, '篮球', '篮球', 0, 'icons/9.gif'),
# \( f: O1 K! h% D5 y% x - (26, 22, '羽毛球', '羽毛球', 0, 'icons/9.gif'),9 v/ ]4 k% C2 l- N& @7 H
- (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。
$ B7 |! l2 I$ ^' G- require_once './classes/MyDB.php';; P7 g! y. `2 k a0 N3 U! v
- $con = MyDB::singleton();7 Q) y4 F- p& Q; i" N# l3 h+ d/ k6 ^
- $sql = <<<SQL! R& p: c8 M X" ^% F$ E! B
- select * from bg_cate cate
5 Q1 Z* p1 y( q/ [2 }5 I; i - SQL;7 e# l% z! E# L W/ G
- $data = $con->getAll($sql);
, Q3 @2 L9 Q- H$ p( D - //print_r($data);
复制代码 数据库操作我用的是pear类库。
" c9 L* i- a6 m" e) I/ d最后的$data的数据格式如下:, k3 A( Z. d6 }4 [
- Array
2 h4 c4 W/ R o1 ] - (
) m" R1 {' d/ \ M, Q7 ?* a4 G - [0] => Array7 U' k1 V' @. D. f. ^4 M
- (
/ x8 h$ X: ~# m. |& j" T - [cate_Id] => 4
5 O# V$ e+ C& k4 y, X0 z/ F6 a8 l( \ - [cate_ParentId] => 0
b# M4 K0 Y( }' H+ w! } - [cate_Name] => 往事如风
7 ~" j- `( x8 Q) I! P - [cate_Intro] => 记录往事3 }' D: N* g7 J
- [cate_Order] => 0
6 b: x: E1 V" D - [cate_Icon] => icons/6.gif& p( s' N2 Q, |/ L4 \
- )# W! Z" K! ~: f
- [1] => Array a- h2 K2 m# {7 G5 O& C& K, l
- (
1 G+ y# Z9 T& @7 y, N+ i+ i: z - [cate_Id] => 5( p6 c. y5 q" P* o- M5 X
- [cate_ParentId] => 0
: }" Q& H$ G8 N3 \ - [cate_Name] => 水煮三国
* ?. `" \& O" Q6 ]3 @' \: }) [ - [cate_Intro] => 品位三国智慧9 M5 B7 E; g7 a( i- @* V6 r- k
- [cate_Order] => 0
J2 `% A, y' l9 G - [cate_Icon] => icons/3.gif
& j6 y, V/ \6 T) Q; W2 z( O - )
复制代码 三.把上一步的数据转为树型状的数组) d0 o& {. |- O( \( n6 h% X$ Z
代码如下:
) U7 s+ E2 ?% W1 z- function getTree($data, $pId). R/ j0 s1 Q9 n0 f3 j. [
- {- O: b& m/ b& |/ v
- $tree = '';
6 O1 M0 {0 k7 z; ?) k, J3 K - foreach($data as $k => $v)2 n! T9 j5 ?$ B) m) u, `! e7 ]: G
- {
\. _8 }2 a r y6 G - if($v['cate_ParentId'] == $pId)
. K5 M( T, v' ^7 X3 m - { //父亲找到儿子9 D' D$ _2 T) _3 ^1 k
- $v['cate_ParentId'] = getTree($data, $v['cate_Id']);% C0 j# X) D# V Z2 ^$ ?
- $tree[] = $v;6 U, \+ K4 ^. x3 K) [. d; P. [. _
- //unset($data[$k]);
+ P, E' f& g1 B* \( w) _0 r - }
) O; F" m5 a: f4 G+ Z - }: v' X0 u. _ d+ Z; `1 @7 H
- return $tree;
; f# v! \1 e& w# p K2 |/ z7 p - }( p4 G$ k# d0 l2 ~9 f8 e- j
- $tree = getTree($data, 0);
复制代码 最后输出$tree的数据格式为:( J/ ~ c; S4 g
- Array
" S: \6 i# V6 D9 i- r$ d) _# z7 ` - (6 C* r* t4 c) v4 p, ^
- [0] => Array# ?2 T7 v: N: c9 \* `' I( J
- (
, ?$ j+ E3 k2 z& {% O - [cate_Id] => 4
$ \) X* \1 @% X+ B! v - [cate_ParentId] =>* z& R* H4 R! `2 l
- [cate_Name] => 往事如风
6 @% Z. F) t4 C - [cate_Intro] => 记录往事
9 Q5 C$ l: g/ M: n - [cate_Order] => 0
/ m1 c1 G0 ]3 {8 a# k% N- t$ C - [cate_Icon] => icons/6.gif
3 V' S7 Z+ G4 V) c/ Y - )
; R0 t. Q% U$ j( O8 h - [1] => Array
2 F) R1 H' {8 V- d: |! F - (# ?1 t$ h$ {; @' T- f+ y3 |
- [cate_Id] => 5
3 p# \' f g$ b! p! L3 s - [cate_ParentId] =>
0 `& M; v4 c& D+ a6 W2 I - [cate_Name] => 水煮三国+ W3 A y5 |: Y2 S: Y
- [cate_Intro] => 品位三国智慧
) g1 R# @; ~5 g& {, h - [cate_Order] => 0& ?! B5 A: q9 O
- [cate_Icon] => icons/3.gif
4 U# f! ~% A- ]* l; y - )
9 U8 H* r E5 Y: b& i2 X7 v - [2] => Array
) U- W/ P8 H! F - (
3 M. j# C* t& C7 X3 W9 s3 V - [cate_Id] => 2
% S4 o3 ?. V* \, Y' L7 V& o - [cate_ParentId] => Array
, e- `% X1 I# I - ($ f, J; u M d, L- Q1 o/ d
- [0] => Array2 G0 z& A' X( v" S
- (& W6 K! Y4 V3 F( [3 A( @4 T7 @' }3 e
- [cate_Id] => 8
+ d) g, m' G! k* L* X% K2 G+ N0 e5 ^ - [cate_ParentId] =>7 {7 ~! U& G* C0 J" Q* n8 O- y
- [cate_Name] => html- V# y3 G- ]7 ~" ~2 H+ u) g) N3 D
- [cate_Intro] => html学习
# u! ?. @! r+ B' W3 a2 t - [cate_Order] => 0
7 a, F9 Z& U& F - [cate_Icon] => icons/1.gif
{- `& {. [8 u. ?+ Y) v; k - )
复制代码 四.把树型状数组转为html
; y$ t3 o8 E9 ~& r& L代码如下:
4 S9 o% M) k$ a- function procHtml($tree)
' {; b, a" r- l7 g5 f( l - {
1 u3 g4 b5 L% K/ f# Q - $html = '';# s6 S& h6 s; ^* S. J8 Y6 Y
- foreach($tree as $t)
- ~: w: g7 ]4 i4 n; o - {
; P5 `9 I! j+ b - if($t['cate_ParentId'] == ''), n! j+ q1 V5 k2 }
- {
5 p' H' P/ r+ A1 T - $html .= "<li>{$t['cate_Name']}</li>";& m' ^ G, u, _0 h
- }0 H& v3 ?' g8 t6 R$ }. e( j$ e; U
- else
/ U. L9 g A! d9 @9 W - { `- h& l% G' H7 N
- $html .= "<li>".$t['cate_Name'];
8 b5 t+ r, W- D: c" c - $html .= procHtml($t['cate_ParentId']);
. y" \2 y3 B2 N' k) J - $html = $html."</li>";3 u9 N( \* E, _) G7 p6 C5 s! N$ @7 \
- }
6 L! N o0 v0 @) c7 Z3 X# Y - }
7 m$ o, ~; e# I, g M1 g - return $html ? '<ul>'.$html.'</ul>' : $html ;
/ X) O @9 l0 a" a. g1 ` - }9 a9 g* f6 x- T2 v( _# T
- echo procHtml($tree);
复制代码 输出的html的代码格式为:" i* u6 H1 E; P) n5 H
- <ul>1 w0 Y& k% T- o c# C5 m
- <li>往事如风</li>
& u7 H8 N# [. e7 J0 ]# r - <li>水煮三国</li>. h6 z1 v( s5 V0 _0 V0 Y
- <li>技术学习( y7 b" k8 S3 {; Y; S/ e
- <ul>
! ]& L. Y8 f* N+ n$ G9 R - <li>html</li>- z; v# T- M: w! J$ c
- <li>css</li>
. [- P" e. o6 T/ j% Y - <li>php
1 F4 ^/ k& \! V% u3 ^ - <ul>0 [# H. d; R8 _' r" v% |1 \/ E% v
- <li>php基础知识</li>. ~7 m* M0 q8 y# |5 n3 w
- <li>oop</li>) _9 b6 b9 v- F; _; k: }7 Z
- <li>php安全</li>
复制代码 五.代码整合
* x9 S) l4 _5 w s6 g- function getTree($data, $pId)
9 r! c" z; F5 h/ F - {
+ G, t# j+ j2 H! ~# Y - $html = '';6 p, d+ u) j. ], J" d! e
- foreach($data as $k => $v)
7 F3 c* U% k) Y$ n6 M5 l' e* s - {. w6 M8 P% L! o. U- ] n
- if($v['cate_ParentId'] == $pId)
" y' [; l( o' m! X. G3 s: [' ~; E - { //父亲找到儿子4 k' u, f, L( M1 q
- $html .= "<li>".$v['cate_Name'];9 g8 F5 U9 s$ u4 [2 Q6 ~! @
- $html .= getTree($data, $v['cate_Id']);
! S! D" @& h& q3 ^1 \+ c" c' q - $html = $html."</li>";. H9 U! Y- a2 b4 ?: l# L
- }
3 ?' |( O7 {6 ^' B$ h - }, j# j9 T% E9 @% K
- return $html ? '<ul>'.$html.'</ul>' : $html ;* k" S. ]$ f4 j0 l
- }
" n2 [* z8 w' h - echo getTree($data, 0);
复制代码 六.增加CSS样式
( j* A/ R5 W/ o5 c1 r+ c
, ~" ]0 x' ?9 j9 b# N0 x
1 p5 ~9 X& u/ n& M1 P8 C* g. [1 s第二种是从开源网站上看到的,非常非常的简介。" ?) @. ]9 \! J
- <?php
& p! N% Z' P4 S -
7 m' T+ o9 u2 a6 h3 I, [6 Q' H - function genTree5($items) {
6 d* E) I% g7 ] - foreach ($items as $item) $ z; U& |3 g5 ? L: ~" B7 m% @
- $items[$item['pid']]['son'][$item['id']] = &$items[$item['id']]; * N/ J- W- I5 {. \1 n
- return isset($items[0]['son']) ? $items[0]['son'] : array();
9 S! z. F* V8 F" t4 j: r/ E - } 2 _* q3 q# c6 y+ F% L& V$ \5 q
-
% x1 {8 }# N" A: O+ ^; @, P - /**
6 u4 m: p2 W* }8 K" v* K - * 将数据格式化成树形结构( p3 m) c) z' ]+ C3 q X( B' {
- * @author Xuefen.Tong
1 A% H. Z& H2 f" ]& P, Q - * @param array $items l( F0 o4 n! `! r5 T$ R6 T$ f
- * @return array . Q% q" Y; N" \
- */" C5 ]+ c) @' f% r+ |6 W. k9 w5 p: p
- function genTree9($items) {8 f& c8 `( l! ~8 ]; Z
- $tree = array(); //格式化好的树
5 k+ v6 d( |# b - foreach ($items as $item)# _! z- h1 c, X1 Y3 r
- if (isset($items[$item['pid']]))
+ S3 ?& q' u3 [ E+ G- h4 {- k - $items[$item['pid']]['son'][] = &$items[$item['id']];
# {- Y- W& G; G' n - else. |7 A6 i0 w4 ^% {7 ~! f. B
- $tree[] = &$items[$item['id']];
; }5 @+ J; z. k! O - return $tree;
9 J& V8 \: I6 t! m ]; \ - }" }8 o6 u) G) p3 w" ]
-
4 G: O/ V$ `. l7 ~9 r/ T - $items = array(" N6 U5 P% v' H$ \6 k- W
- 1 => array('id' => 1, 'pid' => 0, 'name' => '江西省'),
3 z$ t+ N8 S9 m+ K1 r - 2 => array('id' => 2, 'pid' => 0, 'name' => '黑龙江省'),
) r( v1 E* U8 x; v( o7 B - 3 => array('id' => 3, 'pid' => 1, 'name' => '南昌市'),
3 P& C6 \: {( S$ a5 Q. I' g - 4 => array('id' => 4, 'pid' => 2, 'name' => '哈尔滨市'), [9 G7 V4 R1 M; ^
- 5 => array('id' => 5, 'pid' => 2, 'name' => '鸡西市'),
" q+ k7 \* {0 I - 6 => array('id' => 6, 'pid' => 4, 'name' => '香坊区'),6 A, Y' }& R: m; y. u3 }( e# C" }
- 7 => array('id' => 7, 'pid' => 4, 'name' => '南岗区'),
* D2 \+ y! ~" T( @. f - 8 => array('id' => 8, 'pid' => 6, 'name' => '和兴路'),
$ S a* H! o6 U - 9 => array('id' => 9, 'pid' => 7, 'name' => '西大直街'),
* _( b( M- c5 n$ P- U8 Y) i9 k6 C7 U - 10 => array('id' => 10, 'pid' => 8, 'name' => '东北林业大学'),; n/ w! r7 i4 I, C
- 11 => array('id' => 11, 'pid' => 9, 'name' => '哈尔滨工业大学'),
. v4 B0 ?9 H {0 S) p" L# @$ M - 12 => array('id' => 12, 'pid' => 8, 'name' => '哈尔滨师范大学'),, ~0 H; C8 K: U8 E9 h, N
- 13 => array('id' => 13, 'pid' => 1, 'name' => '赣州市'),; G) c% ]9 H: k v' d, Y/ i
- 14 => array('id' => 14, 'pid' => 13, 'name' => '赣县'),
; t6 X7 A$ n1 h+ p - 15 => array('id' => 15, 'pid' => 13, 'name' => '于都县'),
' ~% N d$ ]+ B4 M( G* Z - 16 => array('id' => 16, 'pid' => 14, 'name' => '茅店镇'),
6 b. L1 s# W3 T$ _8 \- c8 O1 |) n" ^ - 17 => array('id' => 17, 'pid' => 14, 'name' => '大田乡'),6 F+ F* W+ [; f% p6 b# k! [3 O
- 18 => array('id' => 18, 'pid' => 16, 'name' => '义源村'),8 R9 ^6 c0 x ?2 B9 `" I) d
- 19 => array('id' => 19, 'pid' => 16, 'name' => '上坝村'),
$ Q& r5 Q/ a& X# x& T) D L# U - );0 }3 ]0 E7 ]( N9 s7 G* t
- echo "<pre>";
9 c, v, T Y8 ] - print_r(genTree5($items));
& G8 G( }1 ~$ C: H, k W2 R - print_r(genTree9($items));
2 V- P1 i( P( u0 |' r2 f) c - * C/ Y8 U5 C6 B6 Y2 ]/ N
- //后者输出格式,前者类似,只是数组键值不一样,不过不影响数据结构
5 A" d3 w0 x) [+ }2 L2 ?1 v \ - /*
' l' x. T& E5 l- @ - Array2 t& T. h" V7 i9 x: }- h
- () Z6 I( ^ \; L# _6 `
- [0] => Array4 O8 y; P! W5 E4 r6 V) U
- (
0 b$ K2 \2 G8 d# f( o - [id] => 1! y) p: }9 \! y$ T9 V
- [pid] => 0# Z5 g/ o2 \, X% [% z
- [name] => 江西省
* m3 g7 p2 z' e" m5 ~# i4 Z - [son] => Array2 s) D; |7 h3 }- M3 X S! `
- (: b) X& }1 l6 Y2 ]& B1 f9 z( n
- [0] => Array
6 [ V- d$ K, G+ l/ ^! ~ - (% m) }! G+ B' j" H! [
- [id] => 3; x0 R* M3 k$ `9 u
- [pid] => 1
5 Y& J$ Q& y( G K' K - [name] => 南昌市( A, m! m ~9 P0 T' C
- )
- E: x: N+ J$ G: `% { -
- J" b, n! Z6 e& s7 L7 c - [1] => Array& l/ H9 N! O) P" R
- (
# p% m& |7 e+ m - [id] => 13
4 n) S. g1 {9 r7 Q2 { e+ k - [pid] => 1
+ s6 W1 a H3 _: j/ Z - [name] => 赣州市
3 v) k% g @' x4 o - [son] => Array
7 K, q; B& \; s) F/ ] - (: w* @; \2 q' f9 I% m: A3 } [
- [0] => Array
/ Q1 e+ P8 \( g- ^2 ] - (
; b0 L) E$ G2 d ^; d - [id] => 149 C4 I' Z8 Q1 @# \ c+ L
- [pid] => 13; G3 }# W9 ?1 `8 f& O) ~, o
- [name] => 赣县
4 n$ n9 \2 v# `* U1 B - [son] => Array& C/ `7 {* P3 E4 x) ~6 F
- (
1 z; K- y: Y" L4 ~4 }3 T4 o. d - [0] => Array
: D3 {- B+ T" ^. y, m) g8 q6 a - (5 |9 D! j+ Y: X: Y- `. F
- [id] => 16' N7 }( t: g3 o( z. M7 ]! x- f# C7 O
- [pid] => 14& A/ j6 q9 q% r
- [name] => 茅店镇8 r t9 R- u2 B" i2 Y5 |
- [son] => Array& d- c" z' c: W! a5 W; P
- (
$ o' E/ Q5 D/ D7 D4 Z - [0] => Array
; M: D0 Z2 F6 g0 s) V. T - (, E7 Y( ~! Q6 q; q+ p
- [id] => 18
% L% \3 o6 R) ?8 ?2 ]8 S4 R! G - [pid] => 16
9 x$ {- n, z" \. X7 s* o - [name] => 义源村
3 a" g3 n" H6 b) G1 |" J/ n( z2 x - )
+ ~9 v& v F( E e" K! A -
7 V* `' Q2 w% u* J6 @; T; @9 h8 ] - [1] => Array
+ K; d5 }; \, s$ k4 s8 @ - (
$ e8 o) ^( \2 h) I& U - [id] => 19
u2 p4 w$ W# w* q - [pid] => 16
3 O- A: U! X* k! W& i7 Z( T2 [: A - [name] => 上坝村5 ?, X" h/ h9 w. \
- )2 m( E/ _4 U4 h
- 0 W9 b. x: f9 ~' X5 \
- )# U2 z n+ S7 i( H
- - r8 n) d* t4 ~) q- [+ H
- ); S4 q7 g* F n; H3 Z7 ]
- * f/ D ?0 |) t7 l" Q) s
- [1] => Array
+ [% d8 x4 V' f. o+ L! w* R5 x - (
% s) e, F# V3 i3 e N - [id] => 175 G# s$ }4 o+ ?7 R: W
- [pid] => 14
9 z- `; U7 `! Z5 S, Z% t - [name] => 大田乡
$ a/ r3 s7 U0 r7 {' ^. X0 x0 { - )
' A! z' ]% n6 g( s/ D -
* R6 ~1 n% x! [, \7 P - )3 M6 [" W# V% ?6 ?. H
- ( H6 t/ R7 |2 ^( B/ ]: D
- ), O1 {; A8 A s6 ]8 P
-
' S1 {* ~' n- D8 A - [1] => Array
' q5 K: C. G( ? `: b9 w - (' L; L+ u5 n& ~/ i H+ B
- [id] => 15
8 d4 T5 M, a! {; H1 i8 m( ~ - [pid] => 13
4 i9 V+ w- ?# K' K* E% r7 M - [name] => 于都县
" }0 n" C! D2 X4 S6 y& L - ), [# O R# v. Z: @7 v
- ) A; {% }4 U y |- S6 e
- )
t( a/ d) A& M - 0 S( W ]- C; E7 R# ~! h0 {! [0 i
- )- n% n) x% E4 y7 Y2 z7 S: Z
- , i* S4 u7 U5 f
- )
4 l7 U% p& c) ~/ T - ( h+ U0 v8 d$ d: ?
- )
( {* b" C8 n$ h& k -
7 b2 y$ ^6 r( ]; x - [1] => Array
$ I: {" H2 j' w% ?( s2 b% m6 K: N - (
" z* O' a5 Y# \- H# L; S - [id] => 2/ b% A7 K5 A8 I& v) q
- [pid] => 05 r* u2 Q: p' i7 X4 o2 j6 _
- [name] => 黑龙江省
`9 ~2 c. U! S( \1 n; D6 U, C5 R - [son] => Array, ]7 t5 @4 A9 e! h9 a
- (: H2 ^% }% K; F
- [0] => Array
5 _! p8 S5 t0 c2 [( v( W" v9 Z! g7 d( \ - (( [# M/ X0 \# @
- [id] => 4
& P8 _ R4 Z/ b. R) U - [pid] => 2; I5 G$ q9 }9 x a
- [name] => 哈尔滨市8 S6 v# E6 p, H% q; |3 V1 i) C
- [son] => Array
, K# a) J+ n3 `9 S( c6 L, ]* V3 ^. [( Y - (* w5 I; N! d6 A$ E
- [0] => Array
Z. t9 |$ E* E, x0 E4 Y - (8 l3 \+ ~7 W) y; _
- [id] => 6
! M( q, m) X( K( U# q4 F; \+ m# X - [pid] => 4
5 L4 ^3 \7 z: ?& F - [name] => 香坊区
1 Y: M9 b1 Z& v8 W - [son] => Array
& d: u$ o( G1 W- V9 K; ~+ |; G' Q$ w, P - (
, C$ Y- P0 g W! K- X; O. ? - [0] => Array* h2 e& ~" B6 e' H- l5 }# a
- (
; `: u' }* U' `9 H# `3 |; k - [id] => 8
0 Q" n/ C6 w! }. ]' h6 A - [pid] => 68 Q6 M5 `4 ?2 ?: m9 d/ y
- [name] => 和兴路
6 K- ?3 a2 F( ^ W, P P# j; G0 ? - [son] => Array
8 \! W2 a* o+ ` H0 W, @ - (
. V% V" Q/ D- ] - [0] => Array6 ?8 I% e1 W! Z: ~; R
- (! y, V- A) X1 ?# ?3 X/ R" B
- [id] => 10# d6 O4 t+ i- i1 T* q
- [pid] => 8+ O {& v3 `0 v0 W
- [name] => / h( L) I _' J& P
- 东北林业大学
: r6 N: U+ t' P& n& \ - )( B3 R7 ^8 A; F$ [* T6 P
- % o. C. v* ]% I$ N
- [1] => Array
7 ?- l' k+ K B2 ]( x- R2 Q - (, f- Z0 y( ~, }% t: a3 r$ ^
- [id] => 12- Q! _9 K( p* {+ l3 T, T" Q
- [pid] => 8
; h2 w/ X5 F. `; T. P% G" V. a - [name] =>
* W/ o$ B, V6 X - 哈尔滨师范大学
+ I% d% X% n! N/ p, F* d7 I4 @, B - )
' g7 X! C7 C% V -
. r i' p7 g- y1 ]4 x4 \( I - )
: M0 ]/ |2 X/ ^+ ?$ g/ G# ]3 M - " Z2 V+ h. n$ y
- )
% {+ |6 K& i: ^/ J1 w! D( R -
& R1 j V* @% M; p - )
, ^4 i- V [# d# w3 a: P X -
# H. P6 @/ a+ S# V2 m: q; v - )
4 t0 _! j( ]8 w$ g -
3 v0 {7 X8 Q+ W& `% f - [1] => Array3 n) n" j T! z& d0 z0 K0 z" n
- (
( L' z1 u; N+ z$ C- u3 n - [id] => 7
$ W/ C! Y- T, X* [% h. E5 O2 g - [pid] => 4( x: p& @( i1 x! m$ _4 k, z& v
- [name] => 南岗区! L0 y4 j# `# T; _4 [$ q
- [son] => Array
5 O0 F7 \9 W, n l9 p9 ~. }# A9 j# E - (/ G0 [- j/ V6 R& K: s# ~
- [0] => Array# Q7 c3 \1 D2 a
- (+ E; m R( w* n0 l' b' N* k
- [id] => 95 _0 q2 i+ K$ f8 b
- [pid] => 72 O3 F# H( {' k6 c8 w5 {! f6 p
- [name] => 西大直街
, d0 J5 E6 Z3 Q# b - [son] => Array* L( m! D7 Z. a
- (
# |! I) n- w8 s) i - [0] => Array
" J' z+ M. `" a/ H - (; P- X" ]; {6 v0 l9 }. j
- [id] => 11! n7 D! L* j8 J% G% c
- [pid] => 9/ O$ N/ R0 V* Y$ m
- [name] => 8 e, N l: ^6 w5 @+ D5 G) b' R" l5 w
- 哈尔滨工业大学
; k: U, L6 E9 ~ - )- O1 \/ J$ q3 I- [& _+ c, c& m
-
. z: z2 W( {& H0 \5 X9 X - )
3 [6 c5 r+ i$ H -
$ v+ q8 M" K3 E' ^1 u+ o5 m - )
& r+ j6 M9 N5 c$ w+ q. i -
6 f5 N& I6 P: T v2 ]6 ?4 Y& T - )1 H/ [6 z; ~: g Y# @% h/ B
-
* v, m2 \( `9 w - )
' x* n( ]: i$ S) [- C' E3 F - 5 s. f; h, d6 ?+ M6 p
- )! w1 ?3 U3 b" u: {# s0 x) a
-
8 l S; M8 }# C0 v - )
3 B* [0 d+ x$ i' x5 u - 2 h$ b" E0 r! @; ^9 [
- [1] => Array
3 D+ j6 j$ z4 a2 K8 [ - (
+ W+ S3 i# ` H! L/ ^8 N. | Q) ? - [id] => 5
9 J8 n1 s- N1 o; b) \+ E/ A% q' O - [pid] => 22 ^1 l2 J- x8 o0 A8 A( j: E
- [name] => 鸡西市
$ S) ]/ d% I: r) Y! i - )- E3 q/ u: u" G( Z/ _/ i" t
- 2 m* I8 {1 M! o. c' m4 v* p7 w
- )3 K. T. {, b; _5 ~# p8 x
- 4 i, h2 j# j+ b; A2 O. F8 }9 q
- )6 [* Q. J$ W2 ]0 q5 o# z; P
- )*/
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。
9 v# I! `) O a- [8 v3 I& F! Z
# d3 u# S" f+ e1 c( l7 E0 H
5 F( l6 O/ p2 o: Z6 Q2 I* U" Q' s6 X6 t1 ]$ B% j1 u5 `
|
|