博客园_失落的BLOGS

SelectNodes 与 XPath

2011-02-24T08:17:00Z

XPath 是 XML 的内容，这里 SelectNodes 是 C# 中 XmlDocument 或 XmlNode 的一个方法。SelectNodes 使用 XPath 来选取节点。

重要语法

SelectNodes("item")

从当前节点的儿子节点中选择名称为 item 的节点。

SelectNodes("/item")

从根节点的儿子节点中选择名称为 item 的节点。

SelectNodes("//item")

从任意位置的节点上选择名称为 item 的节点。要重点突出这个任意位置，它不受当前节点的影响，也就是说假如当前节点是在第 100 层（有点夸张），也可以选择第一层的名称为 item 的节点。

SelectNodes(".")

选择当前节点。

SelectNodes("..")

选择当前节点的父节点。

SelectNodes("//item[@name]")

在 SelectNodes("//item") 的基础上，增加了一个限制，就是要求拥有 name 属性。

SelectNodes("//item[@name='111']")

在 SelectNodes("//item[@name]") 的基础上，增加了一个限制，就是要求 name 属性值为 111。注意语法中有引号；如果没有引号，则表示是数字类型，对于数字类型可以使用大于号、小于号等，比如：SelectNodes("//item[@v>333]")。

SelectNodes("//item[1]")

选择第一个 item，注意是第一个，不是第二个。

还有这里是指亲兄弟间的第一个 item，也就是说：父级若有三个 item，则选择第一个；若父级第二个 item 的有两个名称同样为 item 的儿子，则第一个儿子会被选择出来；若父级第三个 item 的也有两个名称同样为 item 的儿子，则第一个儿子也会被选择出来……

SelectNodes("//item[last()-1]")

倒数第二个节点，同样是指亲兄弟间的倒数第二个。

SelectNodes("//item[position()<=2]")

位置为第一和第二的节点（第一个节点的 position() 为 1），同样是指亲兄弟间的位置。

SelectNodes("//@name")

SelectNodes("/root/item/@name") 取 item 的 name 属性

选择 name 属性，注意这下选择的是属性，而不是节点了。用 Value 属性获取属性集合的属性值。

SelectNodes("/root/item")

根节点 root 下的 item 儿子节点。

SelectNodes("/root//item")

根节点 root 下的不管是儿子、孙子、重孙子……，只要是名称为 item 的统统选取出来。

通配符

可用 * 表示任意节点名称，比如 SelectNodes("/channel/*/item")；
用 @* 表示任意属性；
用 node() 表示任意类型的节点；
用 text() 表示文本类型的节点，实际上也就是表示取文本节点（元素节点下面是文本节点，文本节点下面才是文字）。

运算符

| 表示或。SelectNodes("//item|//channel")，选择 item 或 channel 节点。

本文链接

配置BizTalk时提示无法连接到SQLServer上的SSODB数据库

2011-01-16T11:36:00Z

如果在安装BizTalk之前安装过VS2010就会出现此问题，在配置Eenterprise SSO中无法加载SSOSQL.dll.

解决方法:在Visual Studio Tools中运行Visual Studio Command Prompt 。运行 regasm "C:\Program Files\Common Files\Enterprise Single Sign-On\SSOSQL.dll". 然后重新配置即可。

本文链接

ADO Connection Strings

2011-01-16T11:27:00Z

ADO Connection Strings

ODBC DSN Less Connection

ODBC Driver for dBASE

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strConnection = _T("Driver={Microsoft dBASE Driver (*.dbf)};DriverID=277;"
                   "Dbq=c:\\DatabasePath;");

Note: You must specify the filename in the SQL statement... For example:

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CString strQuery = _T("Select Name, Address From Clients.dbf");

ODBC Driver for Excel

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strConnection = _T("Driver={Microsoft Excel Driver (*.xls)};DriverId=790;"
    bq=C:\\DatabasePath\\DBSpreadSheet.xls;DefaultDir=c:\\databasepath;");

ODBC Driver for Text

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strConnection = _T("Driver={Microsoft Text Driver (*.txt; *.csv)};"
        "Dbq=C:\\DatabasePath\\;Extensions=asc,csv,tab,txt;");

If you are using tab delimited files, you must create the schema.ini file, and you must inform the Format=TabDelimited option in your connection string.

Note: You must specify the filename in the SQL statement... For example:

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CString strQuery = _T("Select Name, Address From Clients.csv");

Visual FoxPro

If you are using a database container, the connection string is the following:

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strConnection = _T("Driver={Microsoft Visual Foxpro Driver};UID=;"
    ourceType=DBC;SourceDB=C:\\DatabasePath\\MyDatabase.dbc;Exclusive=No");

If you are working without a database container, you must change the SourceType parameter by DBF as in the following connection string:

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strConnection = _T("Driver={Microsoft Visual Foxpro Driver};UID=;"
    "SourceType=DBF;SourceDB=C:\\DatabasePath\\MyDatabase.dbc;Exclusive=No");

ODBC Driver for Access

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strConnection = _T("Driver={Microsoft Access Driver (*.mdb)};"
        "Dbq=c:\\DatabasePath\\dbaccess.mdb;Uid=;Pwd=;");

If you are using a Workgroup (System database): you need to inform the SystemDB Path, the User Name and its password. For that, you have two solutions: inform the user and password in the connection string or in the moment of the open operation. For example:

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strConnection = _T("Driver={Microsoft Access Driver (*.mdb)};"
        "Dbq=C:\\VC Projects\\ADO\\Samples\\AdoTest\\dbTestSecurity.mdb;"
        "SystemDB=C:\\Program Files\\Microsoft Office\\Office\\SYSTEM.mdw;"
        "Uid=Carlos Antollini;Pwd=carlos");

or may be:

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strConnection = _T("Driver={Microsoft Access Driver (*.mdb)};"
        "Dbq=C:\\VC Projects\\ADO\\Samples\\AdoTest\\dbTestSecurity.mdb;"
        "SystemDB=C:\\Program Files\\Microsoft Office\\Office\\SYSTEM.mdw;");
if(pDB.Open(strConnection, "DatabaseUser", "DatabasePass"))
{
    DoSomething();
    pDB.Close();
}

If you want to open in Exclusive mode:

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strConnection = _T("Driver={Microsoft Access Driver (*.mdb)};"
        "Dbq=c:\\DatabasePath\dbaccess.mdb;Exclusive=1;");

ODBC Driver for SQL Server

For Standard security:

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strConnection = _T("Driver={SQL Server};Server=MyServerName;"
        "Trusted_Connection=no;"
        "Database=MyDatabaseName;Uid=MyUserName;Pwd=MyPassword;");

For Trusted Connection security (Microsoft Windows NT integrated security):

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strConnection = _T("Driver={SQL Server};Server=MyServerName;"
     "Database=myDatabaseName;Uid=;Pwd=;");

Also, you can use the parameter Trusted_Connection that indicates that you are using the Microsoft Windows NT Authentication Mode to authorize user access to the SQL Server database. For example:

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strConnection = _T("Driver={SQL Server};Server=MyServerName;"
    "Database=MyDatabaseName;Trusted_Connection=yes;");

If the SQL Server is running in the same computer, you can replace the name of the server by the word (local) like in the following sample:

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strConnection = _T("Driver={SQL Server};Server=(local);"
        "Database=MyDatabaseName;Uid=MyUserName;Pwd=MyPassword;");

If you want to connect with a remote SQL Server, you must inform the address, the port, and the Network Library to use:

The Address parameter must be an IP address and must include the port. The Network parameter can be one of the following:

dbnmpntw Win32 Named Pipes
dbmssocn Win32 Winsock TCP/IP
dbmsspxn Win32 SPX/IPX
dbmsvinn Win32 Banyan Vines
dbmsrpcn Win32 Multi-Protocol (Windows RPC)

For more information, see Q238949.

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strConnection = _T("Driver={SQL Server};Server=130.120.110.001;"
     "Address=130.120.110.001,1052;Network=dbmssocn;Database=MyDatabaseName;"
     "Uid=myUsername;Pwd=myPassword;");

ODBC Driver for Oracle

For the current Oracle ODBC driver from Microsoft:

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strConnect = _T("Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;"
        "Uid=MyUsername;Pwd=MyPassword;");

For the older Oracle ODBC driver from Microsoft:

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strConnect = _T("Driver={Microsoft ODBC Driver for Oracle};"
     "ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;");

ODBC Driver for MySQL

If you want to connect to a local database, you can use a connection string like the following:

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strConnect = _T("Driver={MySQL ODBC 3.51 Driver};Server=localhost;"
     "Database=MyDatabase;User=MyUserName;Password=MyPassword;Option=4;");

If you want to connect with a remote database, you need to specify the name of the server or its IP in the Server parameter. If the Port is distinct to 3306 (default port), you must specify it.

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strConnect = _T("Driver={mySQL ODBC 3.51 Driver};Server=MyRemoteHost;"
     "Port=3306;Option=4;Database=MyDatabase;Uid=MyUsername;Pwd=MyPassword;");

The parameter Option can be one or more of the following values:

1 - The client can't handle that MyODBC returns the real width of a column.
2 - The client can't handle that MySQL returns the true value of affected rows. If this flag is set then MySQL returns 'found rows' instead. One must have MySQL 3.21.14 or newer to get this to work.
4 - Make a debug log in c:\myodbc.log. This is the same as putting MYSQL_DEBUG=d:t:O,c::\myodbc.log in AUTOEXEC.BAT.
8 - Don't set any packet limit for results and parameters.
16 - Don't prompt for questions even if driver would like to prompt.
32 - Enable or disable the dynamic cursor support. This is not allowed in MyODBC 2.50.
64 - Ignore use of database name in 'database.table.column'.
128 - Force use of ODBC manager cursors (experimental).
256 - Disable the use of extended fetch (experimental).
512 - Pad CHAR fields to full column length.
1024 - SQLDescribeCol() will return fully qualified column names.
2048 - Use the compressed server/client protocol.
4096 - Tell server to ignore space after function name and before '(' (needed by PowerBuilder). This will make all function names keywords!
8192 - Connect with named pipes to a MySQLd server running on NT.
16384 - Change LONGLONG columns to INT columns (some applications can't handle LONGLONG).
32768 - Return 'user' as Table_qualifier and Table_owner from SQLTables (experimental).
65536 - Read parameters from the client and ODBC groups from my.cnf.
131072 - Add some extra safety checks (should not be needed but...).

If you want to have multiple options, you should add the above flags! For example: 16 + 1024 = 1030 and use Option= 1030;.

For more information, go to MyODBC Reference Manual.

ODBC Driver for AS400

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strConnect = _T("Driver={Client Access ODBC Driver (32-bit)};System=myAS400;"
      "Uid=myUsername;Pwd=myPassword;");

ODBC Driver for SyBase

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strConnect = _T("Driver={Sybase System 10};Srvr=MyServerName;Uid=MyUsername;"
       "Pwd=myPassword;");

ODBC Driver for Sybase SQL AnyWhere

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strConnect = _T("ODBC;Driver=Sybase SQL Anywhere 5.0;"
    "DefaultDir=C:\\DatabasePath\;Dbf=C:\\SqlAnyWhere50\\MyDatabase.db;"
    "Uid=MyUsername;Pwd=MyPassword;Dsn=\"\";");

DSN Connection

ODBC DSN

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strConnect = _T("DSN=MyDSN;Uid=MyUsername;Pwd=MyPassword;");

OLE DB Provider

OLE DB Provider for SQL Server

For Standard security:

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strConnect = _T("Provider=sqloledb;Data Source=MyServerName;"
        "Initial Catalog=MyDatabaseName;"
        "User Id=MyUsername;Password=MyPassword;");

For Trusted Connection security (Microsoft Windows NT integrated security):

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strConnect = _T("Provider=sqloledb;Data Source=MyServerName;"
        "Initial Catalog=MyDatabaseName;"
        "Integrated Security=SSPI;");

If you want to connect to a "Named Instance" (SQL Server 2000), you must to specify Data Source=Servere Name\Instance Name like in the following example:

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strConnect = _T("Provider=sqloledb;Data Source=MyServerName\MyInstanceName;"
    "Initial Catalog=MyDatabaseName;User Id=MyUsername;Password=MyPassword;");

If you want to connect with a SQL Server running on the same computer, you must specify the keyword (local) in the Data Source like in the following example:

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strConnect = _T("Provider=sqloledb;Data Source=(local);"
        "Initial Catalog=myDatabaseName;"
        "User ID=myUsername;Password=myPassword;");

To connect to SQL Server running on a remote computer (via an IP address):

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strConnect = _T("Provider=sqloledb;Network Library=DBMSSOCN;"
        "Data Source=130.120.110.001,1433;"
        "Initial Catalog=MyDatabaseName;User ID=MyUsername;"
        "Password=MyPassword;");

OLE DB Provider for MySQL (By Todd Smith)

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strConnection = _T("Provider=MySQLProv;Data Source=test");

Where test is the name of MySQL database. Also, you can replace the name of the database by the following connection string: server=localhost;DB=test.

OLE DB Provider for AS400

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strConnect = _T("Provider=IBMDA400;Data source=myAS400;User Id=myUsername;"
     "Password=myPassword;");

For more information, see: Using the OLE DB Provider for AS/400 and VSAM.

OLE DB Provider for Active Directory

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strConnect = _T("Provider=ADSDSOObject;User Id=myUsername;Password=myPassword;");

For more information, see: Microsoft OLE DB Provider for Microsoft Active Directory Service.

OLE DB Provider for DB2

If you are using a TCP/IP connection:

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strConnect = _T("Provider=DB2OLEDB;Network Transport Library=TCPIP;"
        "Network Address=130.120.110.001;"
        "Initial Catalog=MyCatalog;Package Collection=MyPackageCollection;"
        "Default Schema=MySchema;User ID=MyUsername;Password=MyPassword;");

If you are using APPC connection:

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strConnect = _T("Provider=DB2OLEDB;APPC Local LU Alias=MyLocalLUAlias;"
        "APPC Remote LU Alias=MyRemoteLUAlias;Initial Catalog=MyCatalog;"
        "Package Collection=MyPackageCollection;Default Schema=MySchema;"
        "User ID=MyUsername;Password=MyPassword;");

For more information, see: Using the OLE DB Provider for DB2.

OLE DB Provider for Microsoft Jet

Connecting to an Access file using the JET OLE DB Provider:

Using Standard security:

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strConnect = _T("Provider=Microsoft.Jet.OLEDB.4.0;"
        "Data Source=C:\\DatabasePath\\MmDatabase.mdb;"
        "User Id=admin;Password=;");

If you are using a Workgroup (System database):

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strConnect = _T("Provider=Microsoft.Jet.OLEDB.4.0;"
        "Data Source=C:\\DataBasePath\\mydb.mdb;"
        "Jet OLEDB:System Database=MySystem.mdw;");
pRs.Open(strConnect, "MyUsername", "MyPassword");

Connecting to an Excel Spreadsheet using the JET OLE DB Provider:
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```
strConnect = _T("Provider=Microsoft.Jet.OLEDB.4.0;"
        "Data Source=C:\\DatabasePath\\DBSpreadSheet.xls;"
        "Extended Properties=\"\"Excel 8.0;HDR=Yes;\"\";");
```
Note: If "HDR=Yes", the provider will not include the first row of the selection into the recordset. If "HDR=No", the provider will include the first row of the cell range (or named ranged) into the recordset.

For more information, see: Q278973.

Connecting to a Text file using the JET OLE DB Provider:

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strConnect = 
        _T("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\DatabasePath\\;"
        "Extended Properties=\"\"text;"
        "HDR=Yes;FMT=Delimited;\"\";");

Note: You must specify the filename in the SQL statement... For example:

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CString strQuery = _T("Select Name, Address From Clients.txt");

For more information, see: Q262537.

Connecting to an Outlook 2000 personal mail box using the JET OLE DB Provider: (By J. Cardinal)
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```
strConnect = _T("Provider=Microsoft.Jet.OLEDB.4.0;Outlook 9.0;"
      "MAPILEVEL=;DATABASE=C:\\Temp\\;")
```
Replace c:\temp with any temporary folder. It will create a schema file in that folder when you open it which shows all the fields available. Blank MAPILEVEL indicates top level of folders).
Connecting to an Exchange mail box through JET: (By J. Cardinal)
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```
strConnect = _T("Provider=Microsoft.Jet.OLEDB.4.0;Exchange 4.0;"
      "MAPILEVEL=Mailbox - Pat Smith|;DATABASE=C:\\Temp\\;")
```
You must replace c:\temp with any temporary folder.

Replace Pat Smith with the name of the mail box and you must keep vertical pipe character | to indicate top level of folders. Place sub folder after vertical pipe if accessing specific folder.

Note: you can enter queries against the mail store just like a database... For example:

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```
CString strQuery = _T("SQL "SELECT Contacts.* FROM Contacts;");
```
For more information, see: The Jet 4.0 Exchange/Outlook IISAM.

OLE DB Provider for ODBC Databases

If you want to connect with a Microsoft Access database:

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strConnect = _T("Provider=MSDASQL;Driver={Microsoft Access Driver (*.mdb)};"
        "Dbq=c:\\DatabasePath\\MyDatabase.mdb;Uid=MyUsername;Pwd=MyPassword;");

If you want to connect with a SQL Server database:

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strConnect = _T("Provider=MSDASQL;Driver={SQL Server};Server=MyServerName;"
        "Database=MyDatabaseName;Uid=MyUsername;Pwd=MyPassword;");

If you want to use DSN:

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strConnect = _T("Provider=MSDASQL;PersistSecurityInfo=False;"
        "Trusted_Connection=Yes;"
        "Data Source=MyDSN;catalog=MyDatabase;");

For more information, see: Microsoft OLE DB Provider for ODBC.

OLE DB Provider for OLAP

Microsoft� OLE DB for Online Analytical Processing (OLAP) is a set of objects and interfaces that extends the ability of OLE DB to provide access to multidimensional data stores.

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strConnect = _T("Provider=MSOLAP;Data Source=MyOLAPServerName;"
     "Initial Catalog=MyOLAPDatabaseName;");

Connection using HTTP:

This feature enables a client application to connect to an Analysis server through Microsoft� Internet Information Services (IIS) by specifying a URL in the Data Source property in the client application's connection string. This connection method allows PivotTable� Service to tunnel through firewalls or proxy servers to the Analysis server. A special Active Server Pages (ASP) page, Msolap.asp, enables the connection through IIS. The directory in which this file resides must be included as part of the URL when connecting to the server (for example, http://www.myserver.com/myolap/).

Using a URL

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strConnect = _T("Provider=MSOLAP;Data Source=http://MyOLAPServerName/;"
     "Initial Catalog=MyOLAPDatabaseName;");

Using SSL

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strConnect = _T("Provider=MSOLAP;Data Source=https://MyOLAPServerName/;"
     "Initial Catalog=MyOLAPDatabaseName;");

For more information, see: OLE DB for OLAP, Connecting Using HTTP.

OLE DB Provider for Oracle

OLE DB Provider for Oracle (from Microsoft)

The Microsoft OLE DB Provider for Oracle allows ADO to access Oracle databases.

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strConnect = _T("Provider=MSDAORA;Data Source=MyOracleDB;User Id=myUsername;"
     "Password=myPassword;");

For more information, see: Microsoft OLE DB Provider for Oracle.

OLE DB Provider for Oracle (from Oracle).

For Standard security:

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strConnect = _T("Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;"
        "User Id=myUsername;Password=myPassword;");

For a Trusted connection:

OS Authenticated connect setting user ID to "/":

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strConnect = _T("Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;"
   "User Id=/;Password=;");

OS Authenticated connect using OSAuthent:
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```
strConnect = _T("Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;")
```
Note: "Data Source=" must be set to the appropriate Net8 name which is known to the naming method in use. For example, for Local Naming, it is the alias in the tnsnames.ora file; for Oracle Names, it is the Net8 Service Name.

For more information, see: Oracle Provider for OLE DB Developer's Guide.

OLE DB Provider for Visual FoxPro

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strConnect = _T("Provider=vfpoledb;"
     "Data Source=C:\\DatabasePath\\MyDatabase.dbc;");

For more information, see: Microsoft OLE DB Provider for Visual FoxPro.

OLE DB Provider for Index Server (By Chris Maunder)

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strConnect = _T("provider=msidxs;Data Source=MyCatalog;");

For more information, see: Microsoft OLE DB Provider for Microsoft Indexing Service.

OLE DB Data Link Connections

Data Link File - UDL

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strConnection = _T("File Name=c:\\DataBasePath\\DatabaseName.udl;");

If you want to create a Data Link File, you can make a new empty text file, change its extension by .udl, then double click over the file, and the operating system calls for you the Data Link app.

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两台笔记本无线共享上网图解

2010-12-01T11:45:00Z

家里有两台笔记本，一个宽带网端口，一条网线，如何实现两台笔记本同时上网？

下面就介绍一种笔记本无线共享上网的方法，具体步骤如下（以下为XP系统下的设置，Vista设置程序与此类似）。

首先，选择其中一台笔记本当做主机。打开主机的“网络连接”，选择“无线网络连接”，右键打开属性对话框，在“常规”选项卡下，双击“TCP/IP 协议”。配置 IP 地址和子网掩码分别为 192.168.0.1 和 255.255.255.0 （如图），其他的不需要设置，如显示与宽带IP冲突时，请重新启动计算机后再试。

然后，再点击主机的“无线网络连接属性”窗口的“无线网络配置”，选中“用windows配置我的无线网络设置”，点击下方的“高级”，在要访问的网络里，勾上“仅计算机到计算机（待定）”，不要勾选“自动连接到非首选的网络”。如图：

建立一个无线虚拟AP，这步是关键。在主机“无线网络配置”选项卡里，首选网络下，点击“添加”，为主机添加一个SSID：

自定义网络名为“dll”，网络验证：开放式，数据加密：WEB，网络密钥：可以输入5或13位ASCII字符或 10或26位十六进制字符，不要勾选“自动为我提供此密钥。也可不设置密钥，但出于无线局域网的安全考虑，一般不建议进行此操作。

配置主机“宽带连接属性”中的“高级”选项卡。勾选“允许其他用户通过此计算机的Internet来连接”和“每当网络上的计算机试图访问Internet时建立一个拨号连接”。

分机设置十分简单。重复步骤一，设置“TCP/IP 协议属性“，为”自动获得IP地址“和”自动获得DNS服务器地址“。点击”确定“。

鼠标右键点击 “无线网络连接”，选择“查看可用的无线连接”，搜索到刚才新建的无线网络“dll”，点击连接（主机和分机执行相同的动作），则无线局域共享设置成功。

这个时候我们在每台计算机上查看右下角的无线图标就会发现显示的是“无线网络连接，速度54Mbps，信号强度非常好，状态已连接上”。两台笔记本就可以同时上网了。

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[转]DB2 修改模式

2009-12-07T08:21:00Z

DB2 Viper提供了一个copy schema的新功能。可以使用ADMIN_COPY_SCHEMA存储过程在同一个数据库中copy一个schema，也可以使用db2move的-co COPY选择在两个数据库间copy一个或多个schema。schema的大部分对象都会被拷贝。测试环境：OS: Windows XPDB2 v9.0.0.257测试数据库: DB2带的sampleADMIN_COP...

[转]学会使用DB2指令

2009-12-07T08:20:00Z

感觉有很多基础问题的答案都是可以通过DB2的帮助获得的，因为DB2安装后自身就带有非常详尽的帮助信息，所以偶觉得有必要总结一下如何获得DB2指令语法的帮助！以下的讨论的是AIX5.2或WINXP下的DB2　8.2，主要侧重维护方面，因本人才疏学浅，涉库不深，有不当之处，还望大伙多多指正和补充！目录：一、如何学会使用db2指令　　1、看图解　　2、使用db2指令　　3、查找资料二、故障...

[转]学会使用DB2指令及故障诊断

2009-12-07T08:19:00Z

BizTalk 宏

2008-09-01T05:36:00Z

您可以使用预定义的宏集合动态创建文件发送处理程序在其中写入消息的文件。在文件系统中创建文件之前，文件发送处理程序将使用单独的值来替换文件名中的所有宏。可以在一个文件名中使用若干不同的宏。可以在 BizTalk 浏览器中配置文件发送处理程序时使用文件名宏，也可以通过使用 BizTalk 浏览器对象模型来使用文件名宏。如果存在以下任何一种情况，文件发送处理程序将不会使用值替换宏：未设置相应的系统属性。...

js

2008-05-10T07:13:00Z

事件源对象 event.srcElement.tagName event.srcElement.type 捕获释放 event.srcElement.setCapture();event.srcElement.releaseCapture(); 事件按键 event.keyCode event.shiftKey event.altKey event.ctrlKey 事件返回值 event.retu...

JavaScript的replace方法与正则表达式结合应用讲解

2008-01-30T03:46:00Z

replace 方法的语法是：stringObj.replace(rgExp, replaceText) 其中 stringObj 是字符串(string)，reExp 可以是正则表达式对象(RegExp)也可以是字符串(string)，replaceText 是替代查找到的字符串。。为了帮助大家更好的理解，下面举个简单例子说明一下 <script language="javascript"...