bitsharp 例子源码下载 bitcoin

C#/.NET项目开发过程中，特别是中大型的项目，跟数据库打交道那是再正常不过的事情了。数据库可以帮助我们保存和管理数据。C#/.NET的项目中，我们也可以使用不同的数据库。 那么，我们今天就来总结整理一下C#/.NET的连接各类主流数据库（SQL Server,MySQL,Microsoft Access,DB2,Oracle）的连接字符串。 一、C#/.NET连接Microsoft SQL Server 1. 使用ODBC数据库连接 // ODBC标准连接 using System.Data.Odbc; OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={SQL Server}; Server=ServerName; DataBase=DataBaseName; Uid=UserName; Pwd=password"; conn.Open();   // ODBC受信任的连接 using System.Data.Odbc; OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={SQL Server}; Server=ServerName; DataBase=DataBaseName; Uid=admin; Pwd=password";  conn.Open();   // 或者 OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={SQL Server}; Server=ServerName; DataBase=DataBaseName; Trusted_Connection=Yes;";  2.使用OLEDB // OleDb标准连接 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Driver=SQLOLEDB; Data Source=ServerName; Initial Catalog=DataBaseName; User id=UserName; Password=Secret;";  conn.Open(); // OleDb受信任的连接 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Driver=SQLOLEDB; Data Source=ServerName; Initial Catalog=DataBaseName; Integrated Security=SSPI;";  conn.Open(); 3.使用.Net DataProvider // .NET DataProvider标准连接 using System.Data.SqlClient; SqlConnection conn = new SqlDbConnection(); conn.ConnectionString ="Data Source=ServerName; Initial Catalog=DataBaseName; User id=UserName; Password=Secret;";  conn.Open(); Data Source=DESKTOP-AC9DHQ6;Initial Catalog=MyKTV;Persist Security Info=True;User ID=sa;Password=mdg456123   // .NET DataProvider受信任连接 using System.Data.SqlClient; SqlConnection conn = new SqlConnection(); conn.ConnectionString = "Data Source=ServerName; Initial Catalog=DataBaseName; Integrated Security=SSPI;";  conn.Open(); 二、C#/.NET连接Microsoft Access 1.使用ODBC连接 // ODBC标准连接 using System.Data.Odbc; OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={Microsoft Access Driver (*.mdb)}; Dbq=c:myPathmyDb.mdb; Uid=Admin; Pwd=;password";  conn.Open();   // ODBC工作组(Workgroup)连接 using System.Data.Odbc; OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={Microsoft Access Driver (*.mdb)}; Dbq=c:myPathmyDb.mdb; SystemDb=c:myPathmyDb.mdw;";  conn.Open(); 2.使用OLEDB连接 // 使用OleDb的Jet标准安全连接 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:mypathmyDb.mdb; User id=admin;Password=password"; conn.Open(); // 使用OleDb的Jet System Database连接 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:mypathmyDb.mdb; System Database=c:mypathmyDb.mdw"; conn.Open(); 三、C#/.NET连接MySQL数据库 1.使用ODBC数据源连接 // ODBC使用MyODBC Driver的远程数据库连接 using System.Data.Odbc;  OdbcConnection conn = new OdbcConnection();  conn.ConnectionString = "Driver={MySql}; Server=192.168.0.10; Option=131072; Port=3306; Stmt=; DataBase=DataBaseName; Uid=UserName; Pwd=password;" ; conn.Open(); 2.使用OLEDB连接 // OleDb标准连接 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection();  conn.ConnectionString = "Provider=MySqlProv; Data Source=ServerName; User id=UserName; Password=Password"; conn.Open(); 四、C#/.NET连接DB2数据库 1.使用ODBC连接 // 不带DSN的ODBC连接 using System.Data.Odbc; OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={IBM DB2 ODBC DRIVER};DataBase=DataBaseName; HostName=ServerName; Protocol=TCPIP;Port=PortNumber;Uid=UserName;Pwd=Secret";  conn.Open(); 2.使用OLEDB连接 // OleDb微软官方驱动 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Driver=DB2OLEDB; Network Transport Library=TCPIP; Network Address=xxx.xxx.xxx.xxx; Package Collection=CollectionName; Initial Catalog=DataBaseName; User id=UserName; Password=Secret;";  conn.Open(); // OleDb IBM 驱动 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Driver=IBMDADB2; DataBase=DataBaseName; HostName=ServerName; Protocol=TCPIP; Port=PortNumber; Uid=UserName; Pwd=Secret;";  conn.Open(); 3.使用.Net DataProvider第三方驱动 // 来自IBM的.NET DataProvider using IBM.Data.DB2; Db2Connection conn = new Db2Connection(); conn.ConnectionString = "DataBase=DataBaseName;Uid=UserName;Pwd=Secret"; conn.Open(); 五、C#/.NET连接Oracle数据库 1.使用ODBC连接 // ODBC 微软的官方驱动 using System.Data.Odbc; OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=UserName;Pwd=Secret;";  conn.Open(); // ODBC Oracle的驱动 using System.Data.Odbc; OdbcConnection conn = new OdbcConnection(); conn.ConnectionString = "Driver={Oracle ODBC Driver};Dbq=myDataBase;Uid=UserName;Pwd=Secret;";  conn.Open(); 2.使用OLEDB连接 // OleDb:Oracle驱动的标准连接 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Driver=OraOLEDB.Oracle;Data Source=ServerName;User id=UserName;Password=Secret;"; conn.Open(); // OleD:Oracle驱动的受信任连接 using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Driver=OraOLEDB.Oracle;Data Source=ServerName;OSAuthent=1;"; conn.Open(); // 或者写成  using System.Data.OleDb; OleDbConnection conn = new OleDbConnection(); conn.ConnectionString = "Driver=OraOLEDB.Oracle;Data Source=ServerName;User id=admin;Password=pwd";  conn.Open();  

/CRC16_MODBUS：多项式x16 x15 x5 1（0x8005），初始值0xFFFF，低位在前，高位在后，结果与0x0000异或unsigned short do_crc(unsigned char *ptr, int len) {     unsigned int i;     unsigned short crc = 0xFFFF;  //crc16位寄存器初始值     while(len--)     {         crc ^= *ptr ;         for (i = 0; i > 1) ^ 0xA001; //多项式 POLY（0x8005)的高低位交换值，这是由于其模型的一些参数决定的             else                 crc = (crc >> 1);         }     }     return crc; }

仅供参考学习

多选的combox

【实例简介】 很优秀的串口调试助手代码

在WinForm实现一个类似资源浏览器的功能，需要实现将WinForm中列出的文件拖出到其他应用程序中或者从其他应用程序中将文件拖入到Winform应用中。网上有一些文章介绍这种功能，但都比较零散，缺少一个完整的例子。为此我编写了一个较完整的实现文件拖入和拖出的例子，并撰写此文一步步讲解如果实现类似功能。

C# 抓包(SharpPcap)

只需要输入站号地址就可以实现通讯 不需要复杂的LRC及CRC计算

C# AForge照相例子源码下载

【实例简介】