摘要:   一 介绍 本文并不想介绍Struts，Spring，Hibernate的原理系统架构等，本文地目的是通过一个较复杂地实例介绍如何整合Struts，Spring，Hibernate，网上现有的例子虽然也能达到目的，但功能都比较单一，复杂的例子时会有意想不到的麻烦。本文对读者假设已经具备了以上框架的基础知识。以及那些已经了解Struts，Spring，Hibernate的基本概念，但...  阅读全文 Oracle的Blob字段比较特殊，他比long字段的性能要好很多，可以用来保存例如图片之类的二进制数据。

　　写入Blob字段和写入其它类型字段的方式非常不同，因为Blob自身有一个cursor，你必须使用cursor对blob进行操作，因而你在写入Blob之前，必须获得cursor才能进行写入，那么如何获得Blob的cursor呢？

　　这需要你先插入一个empty的blob，这将创建一个blob的cursor，然后你再把这个empty的blob的cursor用select查询出来，这样通过两步操作，你就获得了blob的cursor，可以真正的写入blob数据了。

　　看下面的JDBC的demo，把oraclejdbc.jar这个二进制文件写入数据库表javatest的content字段(这是一个blob型字段)

　　import java.sql.*;
　　import java.io.*;
　　import oracle.sql.*;
　　public class WriteBlob {

　　public static void main(String[] args) {

　　try {
　　DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
　　Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","fankai","fankai");
　　conn.setAutoCommit(false);

　　BLOB blob = null;

　　PreparedStatement pstmt = conn.prepareStatement("insert into javatest(name,content) values(?,empty_blob())");
　　pstmt.setString(1,"fankai");
　　pstmt.executeUpdate();
　　pstmt.close();

　　pstmt = conn.prepareStatement("select content from javatest where name= ? for update");
　　pstmt.setString(1,"fankai");
　　ResultSet rset = pstmt.executeQuery();
　　if (rset.next()) blob = (BLOB) rset.getBlob(1);

　　String fileName = "oraclejdbc.jar";
　　File f = new File(fileName);
　　FileInputStream fin = new FileInputStream(f);
　　System.out.println("file size = " + fin.available());

　　pstmt = conn.prepareStatement("update javatest set content=? where name=?");

　　OutputStream out = blob.getBinaryOutputStream();

　　int count = -1, total = 0;
　　byte[] data = new byte[(int)fin.available()];
　　fin.read(data);
　　out.write(data);
　　/*
　　byte[] data = new byte[blob.getBufferSize()]; 另一种实现方法,节省内存
　　while ((count = fin.read(data)) != -1) {
　　　total += count;
　　　out.write(data, 0, count);
　　}
　　*/

　　fin.close();
　　out.close();

　　pstmt.setBlob(1,blob);
　　pstmt.setString(2,"fankai");

　　pstmt.executeUpdate();
　　pstmt.close();

　　conn.commit();
　　conn.close();
　　} catch (SQLException e) {
　　 　System.err.println(e.getMessage());
　　e.printStackTrace();
　　} catch (IOException e) {
　　System.err.println(e.getMessage());
　　}
　　}

　　}

　　仔细看上例，分三步：

　　1、插入空blob

　　into javatest(name,content) values(?,empty_blob());

　　2、获得blob的cursor

　　select content from javatest where name= ? for update;

　　注意！！！必须加for update，这将锁定该行，直至该行被修改完毕，保证不产生并发冲突。

　　3、update javatest set content=? where name=

　　用cursor往数据库写数据

　　这里面还有一点要提醒大家：

　　JDK1.3带的JDBC2.0规范是不完善的，只有读Blob的接口，而没有写Blob的接口，JDK1.4带的JDBC3.0加入了写Blob的接口。你可以使用JDBC3.0的接口，也可以直接使用Oracle的JDBC的API，我在上例中使用了Oracle的JDBC的API。

　　另外要注意的是：

　　java.sql.Blob

　　oracle.sql.BLOB

　　注意看blob的大小写，是不一样的。写程序的时候不要搞混了。

　　下面看看用Hibernate怎么写，原理是一样的，也要分三步，但是代码简单很多

　　这是Cat对象定义

　　package com.fankai;

　　import java.sql.Blob;

　　public class Cat {
　　private String id;
　　private String name;
　　private char sex;
　　private float weight;
　　private Blob image;
　　public Cat() { }

　　public String getId() { return id; }
　　public void setId(String id) { this.id = id; }

　　public String getName() { return name; }
　　public void setName(String name) { this.name = name; }

　　public char getSex() { return sex; }
　　public void setSex(char sex) { this.sex = sex; }

　　public float getWeight() { return weight; }
　　public void setWeight(float weight) { this.weight = weight; }

　　public Blob getImage() { return image; }
　　public void setImage(Blob image) { this.image = image;}
　　}


　　这是Cat.hbm.xml

　　＜?xml version="1.0"?＞
　　＜!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd"＞

　　＜hibernate-mapping＞
　　＜class name="com.fankai.Cat" table="cat"＞
　　＜!--jcs-cache usage="read-only"/--＞
　　＜id name="id" unsaved-value="null"＞
　　＜generator class="uuid.hex"/＞
　　＜/id＞
　　＜property name="name" length="16" not-null="true"/＞
　　＜property name="sex" length="1" not-null="true"/＞
　　＜property name="weight" /＞
　　＜property name="image" /＞
　　＜/class＞
　　＜/hibernate-mapping＞

　　下面是完整的用Hibernate写入Blob的例子，相比JDBC，已经简单轻松多了，也不用写那些Oracle特殊的sql了：

　　package com.fankai;

　　import java.sql.Blob;
　　import net.sf.hibernate.*;
　　import oracle.sql.*;
　　import java.io.*;

　　public class TestCatHibernate {
　　public static void testBlob() {
　　Session s = null;
　　byte[] buffer = new byte[1];
　　buffer[0] = 1;
　　try {
　　　SessionFactory sf = HibernateSessionFactory.getSessionFactory();
　　　s = sf.openSession();
　　　Transaction tx = s.beginTransaction();
　　　Cat c = new Cat();
　　　c.setName("Robbin");
　　　c.setImage(Hibernate.createBlob(buffer));
　　　s.save(c);
　　　s.flush();
　　　s.refresh(c, LockMode.UPGRADE);
　　　BLOB blob = (BLOB) c.getImage();
　　　OutputStream out = blob.getBinaryOutputStream();
　　　String fileName = "oraclejdbc.jar";
　　　File f = new File(fileName);
　　　FileInputStream fin = new FileInputStream(f);
　　　int count = -1, total = 0;
　　　byte[] data = new byte[(int)fin.available()];
　　　fin.read(data);
　　　out.write(data);
　　　fin.close();
　　　out.close();
　　　s.flush();
　　　tx.commit();

　　} catch (Exception e) {
　　　System.out.println(e.getMessage());
　　} finally {
　　　if (s != null)
　　　try {
　　　　s.close();
　　　} catch (Exception e) {}
　　}
　　}
　　}

area.js:
function Dsy()
{
this.Items = {};
}
Dsy.prototype.add = function(id,iArray)
{
this.Items[id] = iArray;
}
Dsy.prototype.Exists = function(id)
{
if(typeof(this.Items[id]) == "undefined") return false;
return true;
}

function change(v){
var str="0";
for(i=0;i<v;i++){ str+=("_"+(document.getElementById(s[i]).selectedIndex-1));};
var ss=document.getElementById(s[v]);
with(ss){
length = 0;
options[0]=new Option(opt0[v],opt0[v]);
if(v && document.getElementById(s[v-1]).selectedIndex>0 || !v)
{
if(dsy.Exists(str)){
ar = dsy.Items[str];
for(i=0;i<ar.length;i++)options[length]=new Option(ar[i],ar[i]);
if(v)options[1].selected = true;
}
}
if(++v<s.length){change(v);}
}
}

var dsy = new Dsy();

dsy.add("0",["安徽","北京","福建","甘肃","广东","广西","贵州","海南","河北","河南","黑龙江","湖北","湖南","吉林","江苏","江西","辽宁","内蒙古","宁夏","青海","山东","山西","陕西","上海","四川","天津","西藏","新疆","云南","浙江","重庆"]);

dsy.add("0_0",["安庆","蚌埠","巢湖","池州","滁州","阜阳","合肥","淮北","淮南","黄山","六安","马鞍山","宿州","铜陵","芜湖","宣城","亳州"]);
dsy.add("0_0_0",["安庆市","怀宁县","潜山县","宿松县","太湖县","桐城市","望江县","岳西县","枞阳县"]);
dsy.add("0_0_1",["蚌埠市","固镇县","怀远县","五河县"]);
dsy.add("0_0_2",["巢湖市","含山县","和县","庐江县","无为县"]);
dsy.add("0_0_3",["池州市","东至县","青阳县","石台县"]);
dsy.add("0_0_4",["滁州市","定远县","凤阳县","来安县","明光市","全椒县","天长市"]);
dsy.add("0_0_5",["阜南县","阜阳市","界首市","临泉县","太和县","颖上县"]);
dsy.add("0_0_6",["长丰县","肥东县","肥西县"]);
dsy.add("0_0_7",["淮北市","濉溪县"]);
dsy.add("0_0_8",["凤台县","淮南市"]);
dsy.add("0_0_9",["黄山市","祁门县","休宁县","歙县","黟县"]);
dsy.add("0_0_10",["霍邱县","霍山县","金寨县","六安市","寿县","舒城县"]);
dsy.add("0_0_11",["当涂县","马鞍山市"]);
dsy.add("0_0_12",["灵璧县","宿州市","萧县","泗县","砀山县"]);
dsy.add("0_0_13",["铜陵市","铜陵县"]);
dsy.add("0_0_14",["繁昌县","南陵县","芜湖市","芜湖县"]);
dsy.add("0_0_15",["广德县","绩溪县","郎溪县","宁国市","宣城市","泾县","旌德县"]);
dsy.add("0_0_16",["利辛县","蒙城县","涡阳县","亳州市"]);

dsy.add("0_1",["北京"]);
dsy.add("0_1_0",["北京市","密云县","延庆县"]);

dsy.add("0_2",["福州","龙岩","南平","宁德","莆田","泉州","三明","厦门","漳州"]);
dsy.add("0_2_0",["长乐市","福清市","福州市","连江县","罗源县","闽侯县","闽清县","平潭县","永泰县"]);
dsy.add("0_2_1",["长汀县","连城县","龙岩市","上杭县","武平县","永定县","漳平市"]);
dsy.add("0_2_2",["光泽县","建阳市","建瓯市","南平市","浦城县","邵武市","顺昌县","松溪县","武夷山市","政和县"]);
dsy.add("0_2_3",["福安市","福鼎市","古田县","宁德市","屏南县","寿宁县","霞浦县","周宁县","柘荣县"]);
dsy.add("0_2_4",["莆田市","仙游县"]);
dsy.add("0_2_5",["安溪县","德化县","惠安县","金门县","晋江市","南安市","泉州市","石狮市","永春县"]);
dsy.add("0_2_6",["大田县","建宁县","将乐县","明溪县","宁化县","清流县","三明市","沙县","泰宁县","永安市","尤溪县"]);
dsy.add("0_2_7",["厦门市"]);
dsy.add("0_2_8",["长泰县","东山县","华安县","龙海市","南靖县","平和县","云霄县","漳浦县","漳州市","诏安县"]);

dsy.add("0_3",["白银","定西","甘南藏族自治州","嘉峪关","金昌","酒泉","兰州","临夏回族自治州","陇南","平凉","庆阳","天水","武威","张掖"]);
dsy.add("0_3_0",["白银市","会宁县","景泰县","靖远县"]);
dsy.add("0_3_1",["定西县","临洮县","陇西县","通渭县","渭源县","漳县","岷县"]);
dsy.add("0_3_2",["迭部县","合作市","临潭县","碌曲县","玛曲县","夏河县","舟曲县","卓尼县"]);
dsy.add("0_3_3",["嘉峪关市"]);
dsy.add("0_3_4",["金昌市","永昌县"]);
dsy.add("0_3_5",["阿克塞哈萨克族自治县","安西县","敦煌市","金塔县","酒泉市","肃北蒙古族自治县","玉门市"]);
dsy.add("0_3_6",["皋兰县","兰州市","永登县","榆中县"]);
dsy.add("0_3_7",["东乡族自治县","广河县","和政县","积石山保安族东乡族撒拉族自治县","康乐县","临夏市","临夏县","永靖县"]);
dsy.add("0_3_8",["成县","徽县","康县","礼县","两当县","文县","武都县","西和县","宕昌县"]);
dsy.add("0_3_9",["崇信县","华亭县","静宁县","灵台县","平凉市","庄浪县","泾川县"]);
dsy.add("0_3_10",["合水县","华池县","环县","宁县","庆城县","庆阳市","镇原县","正宁县"]);
dsy.add("0_3_11",["甘谷县","秦安县","清水县","天水市","武山县","张家川回族自治县"]);
dsy.add("0_3_12",["古浪县","民勤县","天祝藏族自治县","武威市"]);
dsy.add("0_3_13",["高台县","临泽县","民乐县","山丹县","肃南裕固族自治县","张掖市"]);

dsy.add("0_4",["潮州","东莞","佛山","广州","河源","惠州","江门","揭阳","茂名","梅州","清远","汕头","汕尾","韶关","深圳","阳江","云浮","湛江","肇庆","中山","珠海"]);
dsy.add("0_4_0",["潮安县","潮州市","饶平县"]);
dsy.add("0_4_1",["东莞市"]);
dsy.add("0_4_2",["佛山市"]);
dsy.add("0_4_3",["从化市","广州市","增城市"]);
dsy.add("0_4_4",["东源县","和平县","河源市","连平县","龙川县","紫金县"]);
dsy.add("0_4_5",["博罗县","惠东县","惠阳市","惠州市","龙门县"]);
dsy.add("0_4_6",["恩平市","鹤山市","江门市","开平市","台山市"]);
dsy.add("0_4_7",["惠来县","揭东县","揭西县","揭阳市","普宁市"]);
dsy.add("0_4_8",["电白县","高州市","化州市","茂名市","信宜市"]);
dsy.add("0_4_9",["大埔县","丰顺县","蕉岭县","梅县","梅州市","平远县","五华县","兴宁市"]);
dsy.add("0_4_10",["佛冈县","连南瑶族自治县","连山壮族瑶族自治县","连州市","清新县","清远市","阳山县","英德市"]);
dsy.add("0_4_11",["潮阳市","澄海市","南澳县","汕头市"]);
dsy.add("0_4_12",["海丰县","陆丰市","陆河县","汕尾市"]);
dsy.add("0_4_13",["乐昌市","南雄市","曲江县","仁化县","乳源瑶族自治县","韶关市","始兴县","翁源县","新丰县"]);
dsy.add("0_4_14",["深圳市"]);
dsy.add("0_4_15",["阳春市","阳东县","阳江市","阳西县"]);
dsy.add("0_4_16",["罗定市","新兴县","郁南县","云安县","云浮市"]);
dsy.add("0_4_17",["雷州市","廉江市","遂溪县","吴川市","徐闻县","湛江市"]);
dsy.add("0_4_18",["德庆县","封开县","高要市","广宁县","怀集县","四会市","肇庆市"]);
dsy.add("0_4_19",["中山市"]);
dsy.add("0_4_20",["珠海市"]);
dsy.add("0_5",["百色","北海","崇左","防城港","桂林","贵港","河池","贺州","来宾","柳州","南宁","钦州","梧州","玉林"]);
dsy.add("0_5_0",["百色市","德保县","靖西县","乐业县","凌云县","隆林各族自治县","那坡县","平果县","田东县","田林县","田阳县","西林县"]);
dsy.add("0_5_1",["北海市","合浦县"]);
dsy.add("0_5_2",["崇左市","大新县","扶绥县","龙州县","宁明县","凭祥市","天等县"]);
dsy.add("0_5_3",["东兴市","防城港市","上思县"]);
dsy.add("0_5_4",["恭城瑶族自治县","灌阳县","桂林市","荔浦县","临桂县","灵川县","龙胜各族自治县","平乐县","全州县","兴安县","阳朔县","永福县","资源县"]);
dsy.add("0_5_5",["桂平市","贵港市","平南县"]);
dsy.add("0_5_6",["巴马瑶族自治县","大化瑶族自治县","东兰县","都安瑶族自治县","凤山县","河池市","环江毛南族自治县","罗城仡佬族自治县","南丹县","天峨县","宜州市"]);
dsy.add("0_5_7",["富川瑶族自治县","贺州市","昭平县","钟山县"]);
dsy.add("0_5_8",["合山市","金秀瑶族自治县","来宾市","武宣县","象州县","忻城县"]);
dsy.add("0_5_9",["柳城县","柳江县","柳州市","鹿寨县","融安县","融水苗族自治县","三江侗族自治县"]);
dsy.add("0_5_10",["宾阳县","横县","隆安县","马山县","南宁市","上林县","武鸣县","邕宁县"]);
dsy.add("0_5_11",["灵山县","浦北县","钦州市"]);
dsy.add("0_5_12",["苍梧县","蒙山县","藤县","梧州市","岑溪市"]);
dsy.add("0_5_13",["北流市","博白县","陆川县","容县","兴业县","玉林市"]);
dsy.add("0_6",["安顺","毕节","贵阳","六盘水","黔东南苗族侗族自治州","黔南布依族苗族自治州","黔西南布依族苗族自治州","铜仁","遵义"]);
dsy.add("0_6_0",["安顺市","关岭布依族苗族自治县","平坝县","普定县","镇宁布依族苗族自治县","紫云苗族布依族自治县"]);
dsy.add("0_6_1",["毕节市","大方县","赫章县","金沙县","纳雍县","黔西县","威宁彝族回族苗族自治县","织金县"]);
dsy.add("0_6_2",["贵阳市","开阳县","清镇市","息烽县","修文县"]);
dsy.add("0_6_3",["六盘水市","六枝特区","盘县","水城县"]);
dsy.add("0_6_4",["从江县","丹寨县","黄平县","剑河县","锦屏县","凯里市","雷山县","黎平县","麻江县","三穗县","施秉县","台江县","天柱县","镇远县","岑巩县","榕江县"]);
dsy.add("0_6_5",["长顺县","都匀市","独山县","福泉市","贵定县","惠水县","荔波县","龙里县","罗甸县","平塘县","三都水族自治县","瓮安县"]);
dsy.add("0_6_6",["安龙县","册亨县","普安县","晴隆县","望谟县","兴仁县","兴义市","贞丰县"]);
dsy.add("0_6_7",["德江县","江口县","石阡县","思南县","松桃苗族自治县","铜仁市","万山特区","沿河土家族自治县","印江土家族苗族自治县","玉屏侗族自治县"]);
dsy.add("0_6_8",["赤水市","道真仡佬族苗族自治县","凤冈县","仁怀市","绥阳县","桐梓县","务川仡佬族苗族自治县","习水县","余庆县","正安县","遵义市","遵义县","湄潭县"]);

dsy.add("0_7",["白沙黎族自治县","保亭黎族苗族自治县","昌江黎族自治县","澄迈县","定安县","东方","海口","乐东黎族自治县","临高县","陵水黎族自治县","琼海","琼中黎族苗族自治县","三亚","屯昌县","万宁","文昌","五指山","儋州"]);
dsy.add("0_7_0",["白沙黎族自治县"]);
dsy.add("0_7_1",["保亭黎族苗族自治县"]);
dsy.add("0_7_2",["昌江黎族自治县"]);
dsy.add("0_7_3",["澄迈县"]);
dsy.add("0_7_4",["定安县"]);
dsy.add("0_7_5",["东方市"]);
dsy.add("0_7_6",["海口市"]);
dsy.add("0_7_7",["乐东黎族自治县"]);
dsy.add("0_7_8",["临高县"]);
dsy.add("0_7_9",["陵水黎族自治县"]);
dsy.add("0_7_10",["琼海市"]);
dsy.add("0_7_11",["琼中黎族苗族自治县"]);
dsy.add("0_7_12",["三亚市"]);
dsy.add("0_7_13",["屯昌县"]);
dsy.add("0_7_14",["万宁市"]);
dsy.add("0_7_15",["文昌市"]);
dsy.add("0_7_16",["五指山市"]);
dsy.add("0_7_17",["儋州市"]);

dsy.add("0_8",["保定","沧州","承德","邯郸","衡水","廊坊","秦皇岛","石家庄","唐山","邢台","张家口"]);
dsy.add("0_8_0",["安国市","安新县","保定市","博野县","定兴县","定州市","阜平县","高碑店市","高阳县","满城县","清苑县","曲阳县","容城县","顺平县","唐县","望都县","雄县","徐水县","易县","涞水县","涞源县","涿州市","蠡县"]);
dsy.add("0_8_1",["泊头市","沧县","沧州市","东光县","海兴县","河间市","黄骅市","孟村回族自治县","南皮县","青县","任丘市","肃宁县","吴桥县","献县","盐山县"]);
dsy.add("0_8_2",["承德市","承德县","丰宁满族自治县","宽城满族自治县","隆化县","滦平县","平泉县","围场满族蒙古族自治县","兴隆县"]);
dsy.add("0_8_3",["成安县","磁县","大名县","肥乡县","馆陶县","广平县","邯郸市","邯郸县","鸡泽县","临漳县","邱县","曲周县","涉县","魏县","武安市","永年县"]);
dsy.add("0_8_4",["安平县","阜城县","故城县","衡水市","冀州市","景县","饶阳县","深州市","武强县","武邑县","枣强县"]);
dsy.add("0_8_5",["霸州市","大厂回族自治县","大城县","固安县","廊坊市","三河市","文安县","香河县","永清县"]);
dsy.add("0_8_6",["昌黎县","抚宁县","卢龙县","秦皇岛市","青龙满族自治县"]);
dsy.add("0_8_7",["高邑县","晋州市","井陉县","灵寿县","鹿泉市","平山县","深泽县","石家庄市","无极县","辛集市","新乐市","行唐县","元氏县","赞皇县","赵县","正定县","藁城市","栾城县"]);
dsy.add("0_8_8",["乐亭县","滦南县","滦县","迁安市","迁西县","唐海县","唐山市","玉田县","遵化市"]);
dsy.add("0_8_9",["柏乡县","广宗县","巨鹿县","临城县","临西县","隆尧县","南宫市","南和县","内丘县","宁晋县","平乡县","清河县","任县","沙河市","威县","新河县","邢台市","邢台县"]);
dsy.add("0_8_10",["赤城县","崇礼县","沽源县","怀安县","怀来县","康保县","尚义县","万全县","蔚县","宣化县","阳原县","张北县","张家口市","涿鹿县"]);


dsy.add("0_9",["安阳","鹤壁","济源","焦作","开封","洛阳","南阳","平顶山","三门峡","商丘","新乡","信阳","许昌","郑州","周口","驻马店","漯河","濮阳"]);
dsy.add("0_9_0",["安阳市","安阳县","滑县","林州市","内黄县","汤阴县"]);
dsy.add("0_9_1",["","鹤壁市","浚县","淇县"]);
dsy.add("0_9_2",["济源市"]);
dsy.add("0_9_3",["博爱县","焦作市","孟州市","沁阳市","温县","武陟县","修武县"]);
dsy.add("0_9_4",["开封市","开封县","兰考县","通许县","尉氏县","杞县"]);
dsy.add("0_9_5",["洛宁县","洛阳市","孟津县","汝阳县","新安县","伊川县","宜阳县","偃师市","嵩县","栾川县"]);
dsy.add("0_9_6",["邓州市","方城县","南阳市","南召县","内乡县","社旗县","唐河县","桐柏县","西峡县","新野县","镇平县","淅川县"]);
dsy.add("0_9_7",["宝丰县","鲁山县","平顶山市","汝州市","舞钢市","叶县","郏县"]);
dsy.add("0_9_8",["灵宝市","卢氏县","三门峡市","陕县","义马市","渑池县"]);
dsy.add("0_9_9",["民权县","宁陵县","商丘市","夏邑县","永城市","虞城县","柘城县","睢县"]);
dsy.add("0_9_10",["长垣县","封丘县","辉县市","获嘉县","卫辉市","新乡市","新乡县","延津县","原阳县"]);
dsy.add("0_9_11",["固始县","光山县","淮滨县","罗山县","商城县","息县","新县","信阳市","潢川县"]);
dsy.add("0_9_12",["长葛市","襄城县","许昌市","许昌县","禹州市","鄢陵县"]);
dsy.add("0_9_13",["登封市","巩义市","新密市","新郑市","郑州市","中牟县","荥阳市"]);
dsy.add("0_9_14",["郸城县","扶沟县","淮阳县","鹿邑县","商水县","沈丘县","太康县","西华县","项城市","周口市"]);
dsy.add("0_9_15",["泌阳县","平舆县","确山县","汝南县","上蔡县","遂平县","西平县","新蔡县","正阳县","驻马店市"]);
dsy.add("0_9_16",["临颍县","舞阳县","郾城县","漯河市"]);
dsy.add("0_9_17",["范县","南乐县","清丰县","台前县","濮阳市","濮阳县"]);


dsy.add("0_10",["大庆","大兴安岭","哈尔滨","鹤岗","黑河","鸡西","佳木斯","牡丹江","七台河","齐齐哈尔","双鸭山","绥化","伊春"]);
dsy.add("0_10_0",["大庆市","杜尔伯特蒙古族自治县","林甸县","肇源县","肇州县"]);
dsy.add("0_10_1",["呼玛县","漠河县","塔河县"]);
dsy.add("0_10_2",["阿城市","巴彦县","宾县","方正县","哈尔滨市","呼兰县","木兰县","尚志市","双城市","通河县","五常市","延寿县","依兰县"]);
dsy.add("0_10_3",["鹤岗市","萝北县","绥滨县"]);
dsy.add("0_10_4",["北安市","黑河市","嫩江县","孙吴县","五大连池市","逊克县"]);
dsy.add("0_10_5",["虎林市","鸡东县","鸡西市","密山市"]);
dsy.add("0_10_6",["抚远县","富锦市","佳木斯市","汤原县","同江市","桦川县","桦南县"]);
dsy.add("0_10_7",["东宁县","海林市","林口县","牡丹江市","穆棱市","宁安市","绥芬河市"]);
dsy.add("0_10_8",["勃利县","七台河市"]);
dsy.add("0_10_9",["拜泉县","富裕县","甘南县","克东县","克山县","龙江县","齐齐哈尔市","泰来县","依安县","讷河市"]);
dsy.add("0_10_10",["宝清县","集贤县","饶河县","双鸭山市","友谊县"]);
dsy.add("0_10_11",["安达市","海伦市","兰西县","明水县","青冈县","庆安县","绥化市","绥棱县","望奎县","肇东市"]);
dsy.add("0_10_12",["嘉荫县","铁力市","伊春市"]);

dsy.add("0_11",["鄂州","恩施土家族苗族自治州","黄冈","黄石","荆门","荆州","潜江","神农架林区","十堰","随州","天门","武汉","仙桃","咸宁","襄樊","孝感","宜昌"]);
dsy.add("0_11_0",["鄂州市"]);
dsy.add("0_11_1",["巴东县","恩施市","鹤峰县","建始县","来凤县","利川市","咸丰县","宣恩县"]);
dsy.add("0_11_2",["红安县","黄冈市","黄梅县","罗田县","麻城市","团风县","武穴市","英山县","蕲春县","浠水县"]);
dsy.add("0_11_3",["大冶市","黄石市","阳新县"]);
dsy.add("0_11_4",["荆门市","京山县","沙洋县","钟祥市"]);
dsy.add("0_11_5",["公安县","洪湖市","监利县","江陵县","荆州市","石首市","松滋市"]);
dsy.add("0_11_6",["潜江市"]);
dsy.add("0_11_7",["神农架林区"]);
dsy.add("0_11_8",["丹江口市","房县","十堰市","郧西县","郧县","竹山县","竹溪县"]);
dsy.add("0_11_9",["广水市","随州市"]);
dsy.add("0_11_10",["天门市"]);
dsy.add("0_11_11",["武汉市"]);
dsy.add("0_11_12",["仙桃市"]);
dsy.add("0_11_13",["赤壁市","崇阳县","嘉鱼县","通城县","通山县","咸宁市"]);
dsy.add("0_11_14",["保康县","谷城县","老河口市","南漳县","襄樊市","宜城市","枣阳市"]);
dsy.add("0_11_15",["安陆市","大悟县","汉川市","孝昌县","孝感市","应城市","云梦县"]);
dsy.add("0_11_16",["长阳土家族自治县","当阳市","五峰土家族自治县","兴山县","宜昌市","宜都市","远安县","枝江市","秭归县"]);

dsy.add("0_12",["常德","长沙","郴州","衡阳","怀化","娄底","邵阳","湘潭","湘西土家族苗族自治州","益阳","永州","岳阳","张家界","株洲"]);
dsy.add("0_12_0",["安乡县","常德市","汉寿县","津市市","临澧县","石门县","桃源县","澧县"]);
dsy.add("0_12_1",["长沙市","长沙县","宁乡县","望城县","浏阳市"]);
dsy.add("0_12_2",["安仁县","郴州市","桂东县","桂阳县","嘉禾县","临武县","汝城县","宜章县","永兴县","资兴市"]);
dsy.add("0_12_3",["常宁市","衡东县","衡南县","衡山县","衡阳市","衡阳县","祁东县","耒阳市"]);
dsy.add("0_12_4",["辰溪县","洪江市","怀化市","会同县","靖州苗族侗族自治县","麻阳苗族自治县","通道侗族自治县","新晃侗族自治县","中方县","芷江侗族自治县","沅陵县","溆浦县"]);
dsy.add("0_12_5",["冷水江市","涟源市","娄底市","双峰县","新化县"]);
dsy.add("0_12_6",["城步苗族自治县","洞口县","隆回县","邵东县","邵阳市","邵阳县","绥宁县","武冈市","新宁县","新邵县"]);
dsy.add("0_12_7",["韶山市","湘潭市","湘潭县","湘乡市"]);
dsy.add("0_12_8",["保靖县","凤凰县","古丈县","花垣县","吉首市","龙山县","永顺县","泸溪县"]);
dsy.add("0_12_9",["安化县","南县","桃江县","益阳市","沅江市"]);
dsy.add("0_12_10",["道县","东安县","江华瑶族自治县","江永县","蓝山县","宁远县","祁阳县","双牌县","新田县","永州市"]);
dsy.add("0_12_11",["华容县","临湘市","平江县","湘阴县","岳阳市","岳阳县","汨罗市"]);
dsy.add("0_12_12",["慈利县","桑植县","张家界市"]);
dsy.add("0_12_13",["茶陵县","炎陵县","株洲市","株洲县","攸县","醴陵市"]);

dsy.add("0_13",["白城","白山","长春","吉林","辽源","四平","松原","通化","延边朝鲜族自治州"]);
dsy.add("0_13_0",["白城市","大安市","通榆县","镇赉县","洮南市"]);
dsy.add("0_13_1",["白山市","长白朝鲜族自治县","抚松县","江源县","靖宇县","临江市"]);
dsy.add("0_13_2",["长春市","德惠市","九台市","农安县","榆树市"]);
dsy.add("0_13_3",["吉林市","磐石市","舒兰市","永吉县","桦甸市","蛟河市"]);
dsy.add("0_13_4",["东丰县","东辽县","辽源市"]);
dsy.add("0_13_5",["公主岭市","梨树县","双辽市","四平市","伊通满族自治县"]);
dsy.add("0_13_6",["长岭县","扶余县","乾安县","前郭尔罗斯蒙古族自治县","松原市"]);
dsy.add("0_13_7",["辉南县","集安市","柳河县","梅河口市","通化市","通化县"]);
dsy.add("0_13_8",["安图县","敦化市","和龙市","龙井市","图们市","汪清县","延吉市","珲春市"]);


dsy.add("0_14",["常州","淮安","连云港","南京","南通","苏州","宿迁","泰州","无锡","徐州","盐城","扬州","镇江"]);
dsy.add("0_14_0",["常州市","金坛市","溧阳市"]);
dsy.add("0_14_1",["洪泽县","淮安市","金湖县","涟水县","盱眙县"]);
dsy.add("0_14_2",["东海县","赣榆县","灌南县","灌云县","连云港市"]);
dsy.add("0_14_3",["高淳县","南京市","溧水县"]);
dsy.add("0_14_4",["海安县","海门市","南通市","启东市","如东县","如皋市","通州市"]);
dsy.add("0_14_5",["常熟市","昆山市","苏州市","太仓市","吴江市","张家港市"]);
dsy.add("0_14_6",["宿迁市","宿豫县","沭阳县","泗洪县","泗阳县"]);
dsy.add("0_14_7",["姜堰市","靖江市","泰兴市","泰州市","兴化市"]);
dsy.add("0_14_8",["江阴市","无锡市","宜兴市"]);
dsy.add("0_14_9",["丰县","沛县","铜山县","新沂市","徐州市","邳州市","睢宁县"]);
dsy.add("0_14_10",["滨海县","大丰市","东台市","阜宁县","建湖县","射阳县","响水县","盐城市","盐都县"]);
dsy.add("0_14_11",["宝应县","高邮市","江都市","扬州市","仪征市"]);
dsy.add("0_14_12",["丹阳市","句容市","扬中市","镇江市"]);

dsy.add("0_15",["抚州","赣州","吉安","景德镇","九江","南昌","萍乡","上饶","新余","宜春","鹰潭"]);
dsy.add("0_15_0",["崇仁县","东乡县","抚州市","广昌县","金溪县","乐安县","黎川县","南城县","南丰县","宜黄县","资溪县"]);
dsy.add("0_15_1",["安远县","崇义县","大余县","定南县","赣县","赣州市","会昌县","龙南县","南康市","宁都县","全南县","瑞金市","上犹县","石城县","信丰县","兴国县","寻乌县","于都县"]);
dsy.add("0_15_2",["安福县","吉安市","吉安县","吉水县","井冈山市","遂川县","泰和县","万安县","峡江县","新干县","永丰县","永新县"]);
dsy.add("0_15_3",["浮梁县","景德镇市","乐平市"]);
dsy.add("0_15_4",["德安县","都昌县","湖口县","九江市","九江县","彭泽县","瑞昌市","武宁县","星子县","修水县","永修县"]);
dsy.add("0_15_5",["安义县","进贤县","南昌市","南昌县","新建县"]);
dsy.add("0_15_6",["莲花县","芦溪县","萍乡市","上栗县"]);
dsy.add("0_15_7",["波阳县","德兴市","广丰县","横峰县","铅山县","上饶市","上饶县","万年县","余干县","玉山县","弋阳县","婺源县"]);
dsy.add("0_15_8",["分宜县","新余市"]);
dsy.add("0_15_9",["丰城市","奉新县","高安市","靖安县","上高县","铜鼓县","万载县","宜春市","宜丰县","樟树市"]);
dsy.add("0_15_10",["贵溪市","鹰潭市","余江县"]);

dsy.add("0_16",["鞍山","本溪","朝阳","大连","丹东","抚顺","阜新","葫芦岛","锦州","辽阳","盘锦","沈阳","铁岭","营口"]);
dsy.add("0_16_0",["鞍山市","海城市","台安县","岫岩满族自治县"]);
dsy.add("0_16_1",["本溪满族自治县","本溪市","桓仁满族自治县"]);
dsy.add("0_16_2",["北票市","朝阳市","朝阳县","建平县","喀喇沁左翼蒙古族自治县","凌源市"]);
dsy.add("0_16_3",["长海县","大连市","普兰店市","瓦房店市","庄河市"]);
dsy.add("0_16_4",["丹东市","东港市","凤城市","宽甸满族自治县"]);
dsy.add("0_16_5",["抚顺市","抚顺县","清原满族自治县","新宾满族自治县"]);
dsy.add("0_16_6",["阜新蒙古族自治县","阜新市","彰武县"]);
dsy.add("0_16_7",["葫芦岛市","建昌县","绥中县","兴城市"]);
dsy.add("0_16_8",["北宁市","黑山县","锦州市","凌海市","义县"]);
dsy.add("0_16_9",["灯塔市","辽阳市","辽阳县"]);
dsy.add("0_16_10",["大洼县","盘锦市","盘山县"]);
dsy.add("0_16_11",["法库县","康平县","辽中县","沈阳市","新民市"]);
dsy.add("0_16_12",["昌图县","调兵山市","开原市","铁岭市","铁岭县","西丰县"]);
dsy.add("0_16_13",["大石桥市","盖州市","营口市"]);

dsy.add("0_17",["阿拉善盟","巴彦淖尔盟","包头","赤峰","鄂尔多斯","呼和浩特","呼伦贝尔","通辽","乌海","乌兰察布盟","锡林郭勒盟","兴安盟"]);
dsy.add("0_17_0",["阿拉善右旗","阿拉善左旗","额济纳旗"]);
dsy.add("0_17_1",["杭锦后旗","临河市","乌拉特后旗","乌拉特前旗","乌拉特中旗","五原县","磴口县"]);
dsy.add("0_17_2",["包头市","达尔罕茂明安联合旗","固阳县","土默特右旗"]);
dsy.add("0_17_3",["阿鲁科尔沁旗","敖汉旗","巴林右旗","巴林左旗","赤峰市","喀喇沁旗","克什克腾旗","林西县","宁城县","翁牛特旗"]);
dsy.add("0_17_4",["达拉特旗","鄂尔多斯市","鄂托克旗","鄂托克前旗","杭锦旗","乌审旗","伊金霍洛旗","准格尔旗"]);
dsy.add("0_17_5",["和林格尔县","呼和浩特市","清水河县","土默特左旗","托克托县","武川县"]);
dsy.add("0_17_6",["阿荣旗","陈巴尔虎旗","额尔古纳市","鄂伦春自治旗","鄂温克族自治旗","根河市","呼伦贝尔市","满洲里市","莫力达瓦达斡尔族自治旗","新巴尔虎右旗","新巴尔虎左旗","牙克石市","扎兰屯市"]);
dsy.add("0_17_7",["霍林郭勒市","开鲁县","科尔沁左翼后旗","科尔沁左翼中旗","库伦旗","奈曼旗","通辽市","扎鲁特旗"]);
dsy.add("0_17_8",["乌海市"]);
dsy.add("0_17_9",["察哈尔右翼后旗","察哈尔右翼前旗","察哈尔右翼中旗","丰镇市","化德县","集宁市","凉城县","商都县","四子王旗","兴和县","卓资县"]);
dsy.add("0_17_10",["阿巴嘎旗","东乌珠穆沁旗","多伦县","二连浩特市","苏尼特右旗","苏尼特左旗","太仆寺旗","西乌珠穆沁旗","锡林浩特市","镶黄旗","正蓝旗","正镶白旗"]);
dsy.add("0_17_11",["阿尔山市","科尔沁右翼前旗","科尔沁右翼中旗","突泉县","乌兰浩特市","扎赉特旗"]);


dsy.add("0_18",["固原","石嘴山","吴忠","银川"]);
dsy.add("0_18_0",["固原市","海原县","隆德县","彭阳县","西吉县","泾源县"]);
dsy.add("0_18_1",["惠农县","平罗县","石嘴山市","陶乐县"]);
dsy.add("0_18_2",["青铜峡市","同心县","吴忠市","盐池县","中宁县","中卫县"]);
dsy.add("0_18_3",["贺兰县","灵武市","银川市","永宁县"]);


dsy.add("0_19",["果洛藏族自治州","海北藏族自治州","海东","海南藏族自治州","海西蒙古族藏族自治州","黄南藏族自治州","西宁","玉树藏族自治州"]);
dsy.add("0_19_0",["班玛县","达日县","甘德县","久治县","玛多县","玛沁县"]);
dsy.add("0_19_1",["刚察县","海晏县","门源回族自治县","祁连县"]);
dsy.add("0_19_2",["互助土族自治县","化隆回族自治县","乐都县","民和回族土族自治县","平安县","循化撒拉族自治县"]);
dsy.add("0_19_3",["共和县","贵德县","贵南县","同德县","兴海县"]);
dsy.add("0_19_4",["德令哈市","都兰县","格尔木市","天峻县","乌兰县"]);
dsy.add("0_19_5",["河南蒙古族自治县","尖扎县","同仁县","泽库县"]);
dsy.add("0_19_6",["大通回族土族自治县","西宁市","湟源县","湟中县"]);
dsy.add("0_19_7",["称多县","囊谦县","曲麻莱县","玉树县","杂多县","治多县"]);


dsy.add("0_20",["滨州","德州","东营","菏泽","济南","济宁","莱芜","聊城","临沂","青岛","日照","泰安","威海","潍坊","烟台","枣庄","淄博"]);
dsy.add("0_20_0",["滨州市","博兴县","惠民县","无棣县","阳信县","沾化县","邹平县"]);
dsy.add("0_20_1",["德州市","乐陵市","临邑县","陵县","宁津县","平原县","齐河县","庆云县","武城县","夏津县","禹城市"]);
dsy.add("0_20_2",["东营市","广饶县","垦利县","利津县"]);
dsy.add("0_20_3",["曹县","成武县","单县","定陶县","东明县","菏泽市","巨野县","郓城县","鄄城县"]);
dsy.add("0_20_4",["济南市","济阳县","平阴县","商河县","章丘市"]);
dsy.add("0_20_5",["济宁市","嘉祥县","金乡县","梁山县","曲阜市","微山县","鱼台县","邹城市","兖州市","汶上县","泗水县"]);
dsy.add("0_20_6",["莱芜市"]);
dsy.add("0_20_7",["东阿县","高唐县","冠县","聊城市","临清市","阳谷县","茌平县","莘县"]);
dsy.add("0_20_8",["苍山县","费县","临沂市","临沭县","蒙阴县","平邑县","沂南县","沂水县","郯城县","莒南县"]);
dsy.add("0_20_9",["即墨市","胶南市","胶州市","莱西市","平度市","青岛市"]);
dsy.add("0_20_10",["日照市","五莲县","莒县"]);
dsy.add("0_20_11",["东平县","肥城市","宁阳县","泰安市","新泰市"]);
dsy.add("0_20_12",["荣成市","乳山市","威海市","文登市"]);
dsy.add("0_20_13",["安丘市","昌乐县","昌邑市","高密市","临朐县","青州市","寿光市","潍坊市","诸城市"]);
dsy.add("0_20_14",["长岛县","海阳市","莱阳市","莱州市","龙口市","蓬莱市","栖霞市","烟台市","招远市"]);
dsy.add("0_20_15",["枣庄市","滕州市"]);
dsy.add("0_20_16",["高青县","桓台县","沂源县","淄博市"]);


dsy.add("0_21",["长治","大同","晋城","晋中","临汾","吕梁","朔州","太原","忻州","阳泉","运城"]);
dsy.add("0_21_0",["长治市","长治县","长子县","壶关县","黎城县","潞城市","平顺县","沁县","沁源县","屯留县","武乡县","襄垣县"]);
dsy.add("0_21_1",["大同市","大同县","广灵县","浑源县","灵丘县","天镇县","阳高县","左云县"]);
dsy.add("0_21_2",["高平市","晋城市","陵川县","沁水县","阳城县","泽州县"]);
dsy.add("0_21_3",["和顺县","介休市","晋中市","灵石县","平遥县","祁县","寿阳县","太谷县","昔阳县","榆社县","左权县"]);
dsy.add("0_21_4",["安泽县","大宁县","汾西县","浮山县","古县","洪洞县","侯马市","霍州市","吉县","临汾市","蒲县","曲沃县","襄汾县","乡宁县","翼城县","永和县","隰县"]);
dsy.add("0_21_5",["方山县","汾阳市","交城县","交口县","离石市","临县","柳林县","石楼县","文水县","孝义市","兴县","中阳县","岚县"]);
dsy.add("0_21_6",["怀仁县","山阴县","朔州市","应县","右玉县"]);
dsy.add("0_21_7",["古交市","娄烦县","清徐县","太原市","阳曲县"]);
dsy.add("0_21_8",["保德县","代县","定襄县","繁峙县","河曲县","静乐县","宁武县","偏关县","神池县","五台县","五寨县","忻州市","原平市","岢岚县"]);
dsy.add("0_21_9",["平定县","阳泉市","盂县"]);
dsy.add("0_21_10",["河津市","临猗县","平陆县","万荣县","闻喜县","夏县","新绛县","永济市","垣曲县","运城市","芮城县","绛县","稷山县"]);


dsy.add("0_22",["安康","宝鸡","汉中","商洛","铜川","渭南","西安","咸阳","延安","榆林"]);
dsy.add("0_22_0",["安康市","白河县","汉阴县","宁陕县","平利县","石泉县","旬阳县","镇坪县","紫阳县","岚皋县"]);
dsy.add("0_22_1",["宝鸡市","宝鸡县","凤县","凤翔县","扶风县","陇县","眉县","千阳县","太白县","岐山县","麟游县"]);
dsy.add("0_22_2",["城固县","佛坪县","汉中市","留坝县","略阳县","勉县","南郑县","宁强县","西乡县","洋县","镇巴县"]);
dsy.add("0_22_3",["丹凤县","洛南县","山阳县","商洛市","商南县","镇安县","柞水县"]);
dsy.add("0_22_4",["铜川市","宜君县"]);
dsy.add("0_22_5",["白水县","澄城县","大荔县","富平县","韩城市","合阳县","华县","华阴市","蒲城县","渭南市","潼关县"]);
dsy.add("0_22_6",["高陵县","户县","蓝田县","西安市","周至县"]);
dsy.add("0_22_7",["彬县","长武县","淳化县","礼泉县","乾县","三原县","武功县","咸阳市","兴平市","旬邑县","永寿县","泾阳县"]);
dsy.add("0_22_8",["安塞县","富县","甘泉县","黄陵县","黄龙县","洛川县","吴旗县","延安市","延长县","延川县","宜川县","志丹县","子长县"]);
dsy.add("0_22_9",["定边县","府谷县","横山县","佳县","靖边县","米脂县","清涧县","神木县","绥德县","吴堡县","榆林市","子洲县"]);


dsy.add("0_23",["上海"]);
dsy.add("0_23_0",["","崇明县","上海市"]);

dsy.add("0_24",["阿坝藏族羌族自治州","巴中","成都","达州","德阳","甘孜藏族自治州","广安","广元","乐山","凉山彝族自治州","眉山","绵阳","南充","内江","攀枝花","遂宁","雅安","宜宾","资阳","自贡","泸州"]);
dsy.add("0_24_0",["阿坝县","黑水县","红原县","金川县","九寨沟县","理县","马尔康县","茂县","壤塘县","若尔盖县","松潘县","小金县","汶川县"]);
dsy.add("0_24_1",["巴中市","南江县","平昌县","通江县"]);
dsy.add("0_24_2",["成都市","崇州市","大邑县","都江堰市","金堂县","彭州市","蒲江县","双流县","新津县","邛崃市","郫县"]);
dsy.add("0_24_3",["达县","达州市","大竹县","开江县","渠县","万源市","宣汉县"]);
dsy.add("0_24_4",["德阳市","广汉市","罗江县","绵竹市","什邡市","中江县"]);
dsy.add("0_24_5",["巴塘县","白玉县","丹巴县","稻城县","道孚县","德格县","得荣县","甘孜县","九龙县","康定县","理塘县","炉霍县","色达县","石渠县","乡城县","新龙县","雅江县","泸定县"]);
dsy.add("0_24_6",["广安市","华蓥市","邻水县","武胜县","岳池县"]);
dsy.add("0_24_7",["苍溪县","广元市","剑阁县","青川县","旺苍县"]);
dsy.add("0_24_8",["峨边彝族自治县","峨眉山市","夹江县","井研县","乐山市","马边彝族自治县","沐川县","犍为县"]);
dsy.add("0_24_9",["布拖县","德昌县","甘洛县","会东县","会理县","金阳县","雷波县","美姑县","冕宁县","木里藏族自治县","宁南县","普格县","西昌市","喜德县","盐源县","越西县","昭觉县"]);
dsy.add("0_24_10",["丹棱县","洪雅县","眉山市","彭山县","青神县","仁寿县"]);
dsy.add("0_24_11",["安县","北川县","江油市","绵阳市","平武县","三台县","盐亭县","梓潼县"]);
dsy.add("0_24_12",["南部县","南充市","蓬安县","西充县","仪陇县","营山县","阆中市"]);
dsy.add("0_24_13",["隆昌县","内江市","威远县","资中县"]);
dsy.add("0_24_14",["米易县","攀枝花市","盐边县"]);
dsy.add("0_24_15",["大英县","蓬溪县","射洪县","遂宁市"]);
dsy.add("0_24_16",["宝兴县","汉源县","芦山县","名山县","石棉县","天全县","雅安市","荥经县"]);
dsy.add("0_24_17",["长宁县","高县","江安县","南溪县","屏山县","兴文县","宜宾市","宜宾县","珙县","筠连县"]);
dsy.add("0_24_18",["安岳县","简阳市","乐至县","资阳市"]);
dsy.add("0_24_19",["富顺县","荣县","自贡市"]);
dsy.add("0_24_20",["古蔺县","合江县","叙永县","泸县","泸州市"]);


dsy.add("0_25",["天津"]);
dsy.add("0_25_0",["","蓟县","静海县","宁河县","天津市"]);

dsy.add("0_26",["阿里","昌都","拉萨","林芝","那曲","日喀则","山南"]);
dsy.add("0_26_0",["措勤县","噶尔县","改则县","革吉县","普兰县","日土县","札达县"]);
dsy.add("0_26_1",["八宿县","边坝县","察雅县","昌都县","丁青县","贡觉县","江达县","类乌齐县","洛隆县","芒康县","左贡县"]);
dsy.add("0_26_2",["达孜县","当雄县","堆龙德庆县","拉萨市","林周县","墨竹工卡县","尼木县","曲水县"]);
dsy.add("0_26_3",["波密县","察隅县","工布江达县","朗县","林芝县","米林县","墨脱县"]);
dsy.add("0_26_4",["安多县","巴青县","班戈县","比如县","嘉黎县","那曲县","尼玛县","聂荣县","申扎县","索县"]);
dsy.add("0_26_5",["昂仁县","白朗县","定结县","定日县","岗巴县","吉隆县","江孜县","康马县","拉孜县","南木林县","聂拉木县","仁布县","日喀则市","萨嘎县","萨迦县","谢通门县","亚东县","仲巴县"]);
dsy.add("0_26_6",["措美县","错那县","贡嘎县","加查县","浪卡子县","隆子县","洛扎县","乃东县","琼结县","曲松县","桑日县","扎囊县"]);


dsy.add("0_27",["阿克苏","阿拉尔","巴音郭楞蒙古自治州","博尔塔拉蒙古自治州","昌吉回族自治州","哈密","和田","喀什","克拉玛依","克孜勒苏柯尔克孜自治州","石河子","图木舒克","吐鲁番","乌鲁木齐","五家渠","伊犁哈萨克自治州"]);
dsy.add("0_27_0",["阿克苏市","阿瓦提县","拜城县","柯坪县","库车县","沙雅县","温宿县","乌什县","新和县"]);
dsy.add("0_27_1",["阿拉尔市"]);
dsy.add("0_27_2",["博湖县","和静县","和硕县","库尔勒市","轮台县","且末县","若羌县","尉犁县","焉耆回族自治县"]);
dsy.add("0_27_3",["博乐市","精河县","温泉县"]);
dsy.add("0_27_4",["昌吉市","阜康市","呼图壁县","吉木萨尔县","玛纳斯县","米泉市","木垒哈萨克自治县","奇台县"]);
dsy.add("0_27_5",["巴里坤哈萨克自治县","哈密市","伊吾县"]);
dsy.add("0_27_6",["策勒县","和田市","和田县","洛浦县","民丰县","墨玉县","皮山县","于田县"]);
dsy.add("0_27_7",["巴楚县","喀什市","麦盖提县","莎车县","疏附县","疏勒县","塔什库尔干塔吉克自治县","叶城县","英吉沙县","岳普湖县","泽普县","伽师县"]);
dsy.add("0_27_8",["克拉玛依市"]);
dsy.add("0_27_9",["阿合奇县","阿克陶县","阿图什市","乌恰县"]);
dsy.add("0_27_10",["石河子市"]);
dsy.add("0_27_11",["图木舒克市"]);
dsy.add("0_27_12",["吐鲁番市","托克逊县","鄯善县"]);
dsy.add("0_27_13",["乌鲁木齐市","乌鲁木齐县"]);
dsy.add("0_27_14",["五家渠市"]);
dsy.add("0_27_15",["阿勒泰市","布尔津县","察布查尔锡伯自治县","额敏县","福海县","富蕴县","巩留县","哈巴河县","和布克赛尔蒙古自治县","霍城县","吉木乃县","奎屯市","尼勒克县","青河县","沙湾县","塔城市","特克斯县","托里县","乌苏市","新源县","伊宁市","伊宁县","裕民县","昭苏县"]);


dsy.add("0_28",["保山","楚雄彝族自治州","大理白族自治州","德宏傣族景颇族自治州","迪庆藏族自治州","红河哈尼族彝族自治州","昆明","丽江","临沧","怒江傈傈族自治州","曲靖","思茅","文山壮族苗族自治州","西双版纳傣族自治州","玉溪","昭通"]);
dsy.add("0_28_0",["保山市","昌宁县","龙陵县","施甸县","腾冲县"]);
dsy.add("0_28_1",["楚雄市","大姚县","禄丰县","牟定县","南华县","双柏县","武定县","姚安县","永仁县","元谋县"]);
dsy.add("0_28_2",["宾川县","大理市","洱源县","鹤庆县","剑川县","弥渡县","南涧彝族自治县","巍山彝族回族自治县","祥云县","漾濞彝族自治县","永平县","云龙县"]);
dsy.add("0_28_3",["梁河县","陇川县","潞西市","瑞丽市","盈江县"]);
dsy.add("0_28_4",["德钦县","维西傈僳族自治县","香格里拉县"]);
dsy.add("0_28_5",["个旧市","河口瑶族自治县","红河县","建水县","金平苗族瑶族傣族自治县","开远市","绿春县","蒙自县","弥勒县","屏边苗族自治县","石屏县","元阳县","泸西县"]);
dsy.add("0_28_6",["安宁市","呈贡县","富民县","晋宁县","昆明市","禄劝彝族苗族自治县","石林彝族自治县","寻甸回族自治县","宜良县","嵩明县"]);
dsy.add("0_28_7",["华坪县","丽江市","宁蒗彝族自治县","永胜县","玉龙纳西族自治县"]);
dsy.add("0_28_8",["沧源佤族自治县","凤庆县","耿马傣族佤族治县","临沧县","双江拉祜族佤族布朗族傣族自治县","永德县","云县","镇康县"]);
dsy.add("0_28_9",["福贡县","贡山独龙族怒族自治县","兰坪白族普米族自治县","泸水县"]);
dsy.add("0_28_10",["富源县","会泽县","陆良县","罗平县","马龙县","曲靖市","师宗县","宣威市","沾益县"]);
dsy.add("0_28_11",["江城哈尼族彝族自治县","景东彝族自治县","景谷彝族傣族自治县","澜沧拉祜族自治县","孟连傣族拉祜族佤族自治县","墨江哈尼族自治县","普洱哈尼族彝族自治县","思茅市","西盟佤族自治县","镇沅彝族哈尼族拉祜族自治县"]);
dsy.add("0_28_12",["富宁县","广南县","麻栗坡县","马关县","丘北县","文山县","西畴县","砚山县"]);
dsy.add("0_28_13",["景洪市","勐海县","勐腊县"]);
dsy.add("0_28_14",["澄江县","峨山彝族自治县","华宁县","江川县","通海县","新平彝族傣族自治县","易门县","玉溪市","元江哈尼族彝族傣族自治县"]);
dsy.add("0_28_15",["大关县","鲁甸县","巧家县","水富县","绥江县","威信县","盐津县","彝良县","永善县","昭通市","镇雄县"]);

dsy.add("0_29",["杭州","湖州","嘉兴","金华","丽水","宁波","绍兴","台州","温州","舟山","衢州"]);
dsy.add("0_29_0",["淳安县","富阳市","杭州市","建德市","临安市","桐庐县"]);
dsy.add("0_29_1",["安吉县","长兴县","德清县","湖州市"]);
dsy.add("0_29_2",["海宁市","海盐县","嘉善县","嘉兴市","平湖市","桐乡市"]);
dsy.add("0_29_3",["东阳市","金华市","兰溪市","磐安县","浦江县","武义县","义乌市","永康市"]);
dsy.add("0_29_4",["景宁畲族自治县","丽水市","龙泉市","青田县","庆元县","松阳县","遂昌县","云和县","缙云县"]);
dsy.add("0_29_5",["慈溪市","奉化市","宁波市","宁海县","象山县","余姚市"]);
dsy.add("0_29_6",["上虞市","绍兴市","绍兴县","新昌县","诸暨市","嵊州市"]);
dsy.add("0_29_7",["临海市","三门县","台州市","天台县","温岭市","仙居县","玉环县"]);
dsy.add("0_29_8",["苍南县","洞头县","乐清市","平阳县","瑞安市","泰顺县","温州市","文成县","永嘉县"]);
dsy.add("0_29_9",["舟山市","岱山县","嵊泗县"]);
dsy.add("0_29_10",["常山县","江山市","开化县","龙游县","衢州市"]);

dsy.add("0_30",["重庆"]);
dsy.add("0_30_0",["城口县","大足县","垫江县","丰都县","奉节县","合川市","江津市","开县","梁平县","南川市","彭水苗族土家族自治县","荣昌县","石柱土家族自治县","铜梁县","巫山县","巫溪县","武隆县","秀山土家族苗族自治县","永川市","酉阳土家族苗族自治县","云阳县","忠县","重庆市","潼南县","璧山县","綦江县"]);

var s=["province","city","county"];
var opt0 = ["省份","地级市","市、县级市、县"];
function setup()
{
for(i=0;i<s.length-1;i++)
document.getElementById(s[i]).onchange=new Function("change("+(i+1)+")");
change(0);
}

用法如下：

有个朋友问我，怎么判断一个字符串中的某一位是数字，于是在网上帮他找，因为昨天刚学了点正则，还不会用(见笑)。但是有幸遇到一篇全面的文章。 由于还没学会贴图片我就直接贴网址啦
http://www.ccw.com.cn/htm/app/aprog/01_7_31_4.asp

这篇文章整理得很详细。不过对于急于解决问题的人来说，还有一个方法来判断。

跟朋友说的时候，他说他想到了个好办法Character.isDigit(ch);用这个方法，我想他是要把String拆成char了。在这个类里面有如下的方法：
static boolean isDefined(char ch)
static boolean isDigit(char ch)
static boolean isIdentifierIgnorable(char ch)
static boolean isISOControl(char ch)
static boolean isJavaIdentifierPart(char ch)
static boolean isJavaIdentifierStart(char ch)
static boolean isJavaLetter(char ch)
static boolean isJavaLetterOrDigit(char ch)
static boolean isLetter(char ch)
static boolean isLetterOrDigit(char ch)
static boolean isLowerCase(char ch)
static boolean isMirrored(char c)
static boolean isSpace(char ch)
static boolean isSpaceChar(char ch)
static boolean isTitleCase(char ch)
static boolean isUnicodeIdentifierPart(char ch)
static boolean isUnicodeIdentifierStart(char ch)
static boolean isUpperCase(char ch)
static boolean isWhitespace(char ch)
把String拆成char之后就可以这样判断了，没有测过那种更好，见仁见智啦。

以下文章来自：
http://publishblog.blogchina.com/blog/tb.b?diaryID=5453641 

JavaScript 正则表达式

正则表达式使用详解
简介
简单的说，正则表达式是一种可以用于模式匹配和替换的强有力的工具。其作用如下：测试字符串的某个模式。例如，可以对一个输入字符串进行测试，看在该字符串是否存在一个电话号码模式或一个信用卡号码模式。这称为数据有效性验证。 替换文本。可以在文档中使用一个正则表达式来标识特定文字，然后可以全部将其删除，或者替换为别的文字。 根据模式匹配从字符串中提取一个子字符串。可以用来在文本或输入字段中查找特定文字。
基本语法
在对正则表达式的功能和作用有了初步的了解之后，我们就来具体看一下正则表达式的语法格式。 正则表达式的形式一般如下：　　
/love/　　其中位于“/”定界符之间的部分就是将要在目标对象中进行匹配的模式。用户只要把希望查找匹配对象的模式内容放入“/”定界符之间即可。为了能够使用户更加灵活的定制模式内容，正则表达式提供了专门的“元字符”。所谓元字符就是指那些在正则表达式中具有特殊意义的专用字符，可以用来规定其前导字符（即位于元字符前面的字符）在目标对象中的出现模式。 较为常用的元字符包括： “+”， “*”，以及 “?”。
“+”元字符规定其前导字符必须在目标对象中连续出现一次或多次。
“*”元字符规定其前导字符必须在目标对象中出现零次或连续多次。
“?”元字符规定其前导对象必须在目标对象中连续出现零次或一次。
下面，就让我们来看一下正则表达式元字符的具体应用。
/fo+/　　因为上述正则表达式中包含“+”元字符，表示可以与目标对象中的 “fool”, “fo”, 或者 “football”等在字母f后面连续出现一个或多个字母o的字符串相匹配。
/eg*/　　因为上述正则表达式中包含“*”元字符，表示可以与目标对象中的 “easy”, “ego”, 或者 “egg”等在字母e后面连续出现零个或多个字母g的字符串相匹配。
/Wil?/　　因为上述正则表达式中包含“？”元字符，表示可以与目标对象中的 “Win”, 或者“Wilson”,等在字母i后面连续出现零个或一个字母l的字符串相匹配。
有时候不知道要匹配多少字符。为了能适应这种不确定性，正则表达式支持限定符的概念。这些限定符可以指定正则表达式的一个给定组件必须要出现多少次才能满足匹配。
{n} n 是一个非负整数。匹配确定的 n 次。例如，'o{2}' 不能匹配 "Bob" 中的 'o'，但是能匹配 "food" 中的两个 o。
{n,} n 是一个非负整数。至少匹配 n 次。例如，'o{2,}' 不能匹配 "Bob" 中的 'o'，但能匹配 "foooood" 中的所有 o。'o{1,}' 等价于 'o+'。'o{0,}' 则等价于 'o*'。
{n,m} m 和 n 均为非负整数，其中n <= m。最少匹配 n 次且最多匹配 m 次。例如，"o{1,3}" 将匹配 "fooooood" 中的前三个 o。'o{0,1}' 等价于 'o?'。请注意在逗号和两个数之间不能有空格。
除了元字符之外，用户还可以精确指定模式在匹配对象中出现的频率。例如，/jim {2,6}/ 上述正则表达式规定字符m可以在匹配对象中连续出现2-6次，因此，上述正则表达式可以同jimmy或jimmmmmy等字符串相匹配。 在对如何使用正则表达式有了初步了解之后，我们来看一下其它几个重要的元字符的使用方式。
\s：用于匹配单个空格符，包括tab键和换行符；
\S：用于匹配除单个空格符之外的所有字符；
\d：用于匹配从0到9的数字；
\w：用于匹配字母，数字或下划线字符；
\W：用于匹配所有与\w不匹配的字符；
. ：用于匹配除换行符之外的所有字符。
（说明：我们可以把\s和\S以及\w和\W看作互为逆运算） 下面，我们就通过实例看一下如何在正则表达式中使用上述元字符。 /\s+/ 上述正则表达式可以用于匹配目标对象中的一个或多个空格字符。 /\d000/　如果我们手中有一份复杂的财务报表，那么我们可以通过上述正则表达式轻而易举的查找到所有总额达千元的款项。 除了我们以上所介绍的元字符之外，正则表达式中还具有另外一种较为独特的专用字符，即定位符。定位符用于规定匹配模式在目标对象中的出现位置。 较为常用的定位符包括： “^”, “$”, “\b” 以及 “\B”。
“^”定位符规定匹配模式必须出现在目标字符串的开头
“$”定位符规定匹配模式必须出现在目标对象的结尾
“\b”定位符规定匹配模式必须出现在目标字符串的开头或结尾的两个边界之一
“\B”定位符则规定匹配对象必须位于目标字符串的开头和结尾两个边界之内，
即匹配对象既不能作为目标字符串的开头，也不能作为目标字符串的结尾。
同样，我们也可以把“^”和“$”以及“\b”和“\B”看作是互为逆运算的两组定位符。举例来说： /^hell/　因为上述正则表达式中包含“^”定位符，所以可以与目标对象中以 “hell”, “hello”或“hellhound”开头的字符串相匹配。 /ar$/　因为上述正则表达式中包含“$”定位符，所以可以与目标对象中以 “car”, “bar”或 “ar” 结尾的字符串相匹配。 /\bbom/　因为上述正则表达式模式以“\b”定位符开头，所以可以与目标对象中以 “bomb”, 或 “bom”开头的字符串相匹配。/man\b/　因为上述正则表达式模式以“\b”定位符结尾，所以可以与目标对象中以 “human”, “woman”或 “man”结尾的字符串相匹配。 为了能够方便用户更加灵活的设定匹配模式，正则表达式允许使用者在匹配模式中指定某一个范围而不局限于具体的字符。例如：
/[A-Z]/　　上述正则表达式将会与从A到Z范围内任何一个大写字母相匹配。
/[a-z]/　　上述正则表达式将会与从a到z范围内任何一个小写字母相匹配。
/[0-9]/ 　上述正则表达式将会与从0到9范围内任何一个数字相匹配。
/([a-z][A-Z][0-9])+/　上述正则表达式将会与任何由字母和数字组成的字符串，如 “aB0” 等相匹配。
这里需要提醒用户注意的一点就是可以在正则表达式中使用 “()” 把字符串组合在一起。“()”符号包含的内容必须同时出现在目标对象中。因此，上述正则表达式将无法与诸如 “abc”等的字符串匹配，因为“abc”中的最后一个字符为字母而非数字。 如果我们希望在正则表达式中实现类似编程逻辑中的“或”运算，在多个不同的模式中任选一个进行匹配的话，可以使用管道符 “|”。例如：/to|too|2/　上述正则表达式将会与目标对象中的 “to”, “too”, 或 “2” 相匹配。正则表达式中还有一个较为常用的运算符，即否定符 “[^]”。与我们前文所介绍的定位符 “^” 不同，否定符 “[^]”规定目标对象中不能存在模式中所规定的字符串。例如：/[^A-C]/　上述字符串将会与目标对象中除A，B，和C之外的任何字符相匹配。一般来说，当“^”出现在 “[]”内时就被视做否定运算符；而当“^”位于“[]”之外，或没有“[]”时，则应当被视做定位符。最后，当用户需要在正则表达式的模式中加入元字符，并查找其匹配对象时，可以使用转义符“\”。例如：/Th\*/ 　上述正则表达式将会与目标对象中的“Th*”而非“The”等相匹配。在构造正则表达式之后，就可以象数学表达式一样来求值，也就是说，可以从左至右并按照一个优先级顺序来求值。优先级如下：
使用实例
在JavaScript 1.2中带有一个功能强大的RegExp()对象，可以用来进行正则表达式的匹配操作。其中的test()方法可以检验目标对象中是否包含匹配模式，并相应的返回true或false。我们可以使用JavaScript编写以下脚本，验证用户输入的邮件地址的有效性。

正则表达式对象
本对象包含正则表达式模式以及表明如何应用模式的标志。
语法 1 re = /pattern/[flags]
语法 2 re = new RegExp("pattern",["flags"])
参数 re 必选项。将要赋值为正则表达式模式的变量名。
Pattern 必选项。要使用的正则表达式模式。如果使用语法 1，用 "/" 字符分隔模式。如果用语法 2，用引号将模式引起来。
Flags 可选项。如果使用语法 2 要用引号将 flag 引起来。标志可以组合使用，可用的有：
g （全文查找出现的所有 pattern）
i （忽略大小写）
m （多行查找）
示例
下面的示例创建一个包含正则表达式模式及相关标志的对象(re)，向您演示正则表达式对象的用法。在本例中，作为结果的正则表达式对象又用于 match 方法中：

返回值： ain,ain,ain,ain
属性 lastIndex 属性 | source 属性
方法 compile 方法 | exec 方法 | test 方法
要求 版本 3
请参阅 RegExp 对象 | 正则表达式语法 | String 对象
exec 方法
用正则表达式模式在字符串中运行查找，并返回包含该查找结果的一个数组。 rgExp.exec(str)
参数
rgExp 必选项。包含正则表达式模式和可用标志的正则表达式对象。
str 必选项。要在其中执行查找的 String 对象或字符串文字。
说明
如果 exec 方法没有找到匹配，则它返回 null。如果它找到匹配，则 exec 方法返回一个数组，并且更新全局 RegExp 对象的属性，以反映匹配结果。数组的0元素包含了完整的匹配，而第1到n元素中包含的是匹配中出现的任意一个子匹配。这相当于没有设置全局标志 (g) 的 match 方法。如果为正则表达式设置了全局标志，exec 从以 lastIndex 的值指示的位置开始查找。如果没有设置全局标志，exec 忽略 lastIndex 的值，从字符串的起始位置开始搜索。
exec 方法返回的数组有三个属性，分别是 input、index 和 lastIndex。Input 属性包含了整个被查找的字符串。Index 属性中包含了整个被查找字符串中被匹配的子字符串的位置。LastIndex 属性中包含了匹配中最后一个字符的下一个位置。
示例
下面的例子举例说明了 exec 方法的用法：

返回值：0-3The 4-8rain 9-11in 12-17Spain 18-23falls 24-30mainly 31-33in 34-37the 38-43plain
test 方法
返回一个 Boolean 值，它指出在被查找的字符串中是否存在模式。 rgexp.test(str)
参数
rgexp 必选项。包含正则表达式模式或可用标志的正则表达式对象。
str 必选项。要在其上测试查找的字符串。
说明 test 方法检查在字符串中是否存在一个模式，如果存在则返回 true，否则就返回 false。全局 RegExp 对象的属性不由 test 方法来修改。
示例下面的例子举例说明了 test 方法的用法：

函数调用：document.write (TestDemo(/ain+/ ,"The rain in Spain falls mainly in the plain."));
返回值：'The rain in Spain falls mainly in the plain.' contains 'ain+'
match 方法
使用正则表达式模式对字符串执行查找，并将包含查找的结果作为数组返回。
stringObj.match(rgExp)
参数
stringObj 必选项。对其进行查找的 String 对象或字符串文字。
rgExp 必选项。为包含正则表达式模式和可用标志的正则表达式对象。也可以是包含正则表达式模式和可用标志的变量名或字符串文字。
说明
如果 match 方法没有找到匹配，返回 null。如果找到匹配返回一个数组并且更新全局 RegExp 对象的属性以反映匹配结果。 match 方法返回的数组有三个属性：input、index 和 lastIndex。Input 属性包含整个的被查找字符串。Index 属性包含了在整个被查找字符串中匹配的子字符串的位置。LastIndex 属性包含了最后一次匹配中最后一个字符的下一个位置。如果没有设置全局标志 (g)，数组的 0 元素包含整个匹配，而第 1 到 n 元素包含了匹配中曾出现过的任一个子匹配。这相当于没有设置全局标志的 exec 方法。如果设置了全局标志，元素 0 到 n 中包含所有匹配。
示例
下面的示例演示了match 方法的用法：

返回值：ain,ain,ain,ain
上面几行代码演示了字符串文字的 match 方法的用法。
var r, re = "Spain";
r = "The rain in Spain".replace(re, "Canada");
return r;
返回值：The rain in Canada
search 方法
返回与正则表达式查找内容匹配的第一个子字符串的位置。
stringObj.search(rgExp)
参数
stringObj 必选项。要在其上进行查找的 String 对象或字符串文字。
rgExp 必选项。包含正则表达式模式和可用标志的正则表达式对象。
说明
search 方法指明是否存在相应的匹配。如果找到一个匹配，search 方法将返回一个整数值，指明这个匹配距离字符串开始的偏移位置。如果没有找到匹配，则返回 -1。
示例
下面的示例演示了 search 方法的用法。

返回值：18
正则表达式语法
一个正则表达式就是由普通字符（例如字符 a 到 z）以及特殊字符（称为元字符）组成的文字模式。该模式描述在查找文字主体时待匹配的一个或多个字符串。正则表达式作为一个模板，将某个字符模式与所搜索的字符串进行匹配。
这里有一些可能会遇到的正则表达式示例：
JScript VBScript 匹配
/^\[ \t]*$/ "^\[ \t]*$" 匹配一个空白行。
/\d{2}-\d{5}/ "\d{2}-\d{5}" 验证一个ID 号码是否由一个2位数字，一个连字符以及一个5位数字组成。
/<(.*)>.*<\/\1>/ "<(.*)>.*<\/\1>" 匹配一个 HTML 标记。
下表是元字符及其在正则表达式上下文中的行为的一个完整列表：
字符 描述 \ 将下一个字符标记为一个特殊字符、或一个原义字符、或一个 后向引用、或一个八进制转义符。例如，'n' 匹配字符 "n"。'\n' 匹配一个换行符。序列 '
' 匹配 "\" 而 "\(" 则匹配 "("。
^ 匹配输入字符串的开始位置。如果设置了 RegExp 对象的 Multiline 属性，^ 也匹配 '\n' 或 '\r' 之后的位置。
$ 匹配输入字符串的结束位置。如果设置了RegExp 对象的 Multiline 属性，$ 也匹配 '\n' 或 '\r' 之前的位置。
• 匹配前面的子表达式零次或多次。例如，zo* 能匹配 "z" 以及 "zoo"。 * 等价于{0,}。
+ 匹配前面的子表达式一次或多次。例如，'zo+' 能匹配 "zo" 以及 "zoo"，但不能匹配 "z"。+ 等价于 {1,}。
? 匹配前面的子表达式零次或一次。例如，"do(es)?" 可以匹配 "do" 或 "does" 中的"do" 。? 等价于 {0,1}。
{n} n 是一个非负整数。匹配确定的 n 次。例如，'o{2}' 不能匹配 "Bob" 中的 'o'，但是能匹配 "food" 中的两个 o。
{n,} n 是一个非负整数。至少匹配n 次。例如，'o{2,}' 不能匹配 "Bob" 中的 'o'，但能匹配 "foooood" 中的所有 o。'o{1,}' 等价于 'o+'。'o{0,}' 则等价于 'o*'。
{n,m} m 和 n 均为非负整数，其中n <= m。最少匹配 n 次且最多匹配 m 次。刘， "o{1,3}" 将匹配 "fooooood" 中的前三个 o。'o{0,1}' 等价于 'o?'。请注意在逗号和两个数之间不能有空格。
? 当该字符紧跟在任何一个其他限制符 (*, +, ?, {n}, {n,}, {n,m}) 后面时，匹配模式是非贪婪的。非贪婪模式尽可能少的匹配所搜索的字符串，而默认的贪婪模式则尽可能多的匹配所搜索的字符串。例如，对于字符串 "oooo"，'o+?' 将匹配单个 "o"，而 'o+' 将匹配所有 'o'。
. 匹配除 "\n" 之外的任何单个字符。要匹配包括 '\n' 在内的任何字符，请使用象 '[.\n]' 的模式。 (pattern) 匹配pattern 并获取这一匹配。所获取的匹配可以从产生的 Matches 集合得到，在VBScript 中使用 SubMatches 集合，在JScript 中则使用 $0…$9 属性。要匹配圆括号字符，请使用 '\(' 或 '\)'。
(?:pattern) 匹配 pattern 但不获取匹配结果，也就是说这是一个非获取匹配，不进行存储供以后使用。这在使用 "或" 字符 (|) 来组合一个模式的各个部分是很有用。例如， 'industr(?:y|ies) 就是一个比 'industry|industries' 更简略的表达式。
(?=pattern) 正向预查，在任何匹配 pattern 的字符串开始处匹配查找字符串。这是一个非获取匹配，也就是说，该匹配不需要获取供以后使用。例如， 'Windows (?=95|98|NT|2000)' 能匹配 "Windows 2000" 中的 "Windows" ，但不能匹配 "Windows 3.1" 中的 "Windows"。预查不消耗字符，也就是说，在一个匹配发生后，在最后一次匹配之后立即开始下一次匹配的搜索，而不是从包含预查的字符之后开始。
(?!pattern) 负向预查，在任何不匹配Negative lookahead matches the search string at any point where a string not matching pattern 的字符串开始处匹配查找字符串。这是一个非获取匹配，也就是说，该匹配不需要获取供以后使用。例如'Windows (?!95|98|NT|2000)' 能匹配 "Windows 3.1" 中的 "Windows"，但不能匹配 "Windows 2000" 中的 "Windows"。预查不消耗字符，也就是说，在一个匹配发生后，在最后一次匹配之后立即开始下一次匹配的搜索，而不是从包含预查的字符之后开始
x|y 匹配 x 或 y。例如，'z|food' 能匹配 "z" 或 "food"。'(z|f)ood' 则匹配 "zood" 或 "food"。
[xyz] 字符集合。匹配所包含的任意一个字符。例如， '[abc]' 可以匹配 "plain" 中的 'a'。
[^xyz] 负值字符集合。匹配未包含的任意字符。例如， '[^abc]' 可以匹配 "plain" 中的'p'。
[a-z] 字符范围。匹配指定范围内的任意字符。例如，'[a-z]' 可以匹配 'a' 到 'z' 范围内的任意小写字母字符。
[^a-z] 负值字符范围。匹配任何不在指定范围内的任意字符。例如，'[^a-z]' 可以匹配任何不在 'a' 到 'z' 范围内的任意字符。
\b 匹配一个单词边界，也就是指单词和空格间的位置。例如， 'er\b' 可以匹配"never" 中的 'er'，但不能匹配 "verb" 中的 'er'。
\B 匹配非单词边界。'er\B' 能匹配 "verb" 中的 'er'，但不能匹配 "never" 中的 'er'。
\cx 匹配由x指明的控制字符。例如， \cM 匹配一个 Control-M 或回车符。 x 的值必须为 A-Z 或 a-z 之一。否则，将 c 视为一个原义的 'c' 字符。
\d 匹配一个数字字符。等价于 [0-9]。
\D 匹配一个非数字字符。等价于 [^0-9]。
\f 匹配一个换页符。等价于 \x0c 和 \cL。
\n 匹配一个换行符。等价于 \x0a 和 \cJ。
\r 匹配一个回车符。等价于 \x0d 和 \cM。
\s 匹配任何空白字符，包括空格、制表符、换页符等等。等价于 [ \f\n\r\t\v]。
\S 匹配任何非空白字符。等价于 [^ \f\n\r\t\v]。
\t 匹配一个制表符。等价于 \x09 和 \cI。
\v 匹配一个垂直制表符。等价于 \x0b 和 \cK。
\w 匹配包括下划线的任何单词字符。等价于'[A-Za-z0-9_]'。
\W 匹配任何非单词字符。等价于 '[^A-Za-z0-9_]'。
\xn 匹配 n，其中 n 为十六进制转义值。十六进制转义值必须为确定的两个数字长。例如， '\x41' 匹配 "A"。'\x041' 则等价于 '\x04' & "1"。正则表达式中可以使用 ASCII 编码。.
\num 匹配 num，其中 num 是一个正整数。对所获取的匹配的引用。例如，'(.)\1' 匹配两个连续的相同字符。
\n 标识一个八进制转义值或一个后向引用。如果 \n 之前至少 n 个获取的子表达式，则 n 为后向引用。否则，如果 n 为八进制数字 (0-7)，则 n 为一个八进制转义值。
\nm 标识一个八进制转义值或一个后向引用。如果 \nm 之前至少有is preceded by at least nm 个获取得子表达式，则 nm 为后向引用。如果 \nm 之前至少有 n 个获取，则 n 为一个后跟文字 m 的后向引用。如果前面的条件都不满足，若 n 和 m 均为八进制数字 (0-7)，则 \nm 将匹配八进制转义值 nm。
\nml 如果 n 为八进制数字 (0-3)，且 m 和 l 均为八进制数字 (0-7)，则匹配八进制转义值 nml。
\un 匹配 n，其中 n 是一个用四个十六进制数字表示的 Unicode 字符。例如， \u00A9 匹配版权符号 (?)。
优先权顺序
在构造正则表达式之后，就可以象数学表达式一样来求值，也就是说，可以从左至右并按照一个优先权顺序来求值。
下表从最高优先级到最低优先级列出各种正则表达式操作符的优先权顺序：
操作符 描述
\ 转义符
(), (?:), (?=), [] 圆括号和方括号
*, +, ?, {n}, {n,}, {n,m} 限定符
^, $, \anymetacharacter 位置和顺序
| “或”操作
普通字符
普通字符由所有那些未显式指定为元字符的打印和非打印字符组成。这包括所有的大写和小写字母字符，所有数字，所有标点符号以及一些符号。
最简单的正则表达式是一个单独的普通字符，可以匹配所搜索字符串中的该字符本身。例如，单字符模式 'A' 可以匹配所搜索字符串中任何位置出现的字母 'A'。这里有一些单字符正则表达式模式的示例：
/a/
/7/
/M/
等价的 VBScript 单字符正则表达式为：
"a"
"7"
"M"
可以将多个单字符组合在一起得到一个较大的表达式。例如，下面的 JScript 正则表达式不是别的，就是通过组合单字符表达式 'a'、'7'以及 'M' 所创建出来的一个表达式。
/a7M/ 等价的 VBScript 表达式为：
"a7M" 请注意这里没有连接操作符。所需要做的就是将一个字符放在了另一个字符后面。

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我们开发web系统的时候，经常会用到ThreadLocal进行session的管理，对于 ThreadLocal的有关理解我是这样的：
我们用ThreadLocal是为了实现线程缓冲池的作用，就象数据库连接池一样，能够给本地用户提供现有的session对象。它并不是线程的一种实现，而是在维护本地变量，为各自的本地提供维护的渠道，避免线程的冲突。
但是，ThreadLocal的确是相对线程的，每个线程都会有自己的ThreadLocal，在一个系统的线程池里面，不同用户访问时候，可能会接受到同样的线程，这个时候要注意了，如果你这个时候用到了ThreadLocal变量，要注意避免ThreadLocal缓存（即：其他的线程访问到本线程ThreadLocal变量）；