一些常用的字符串函数（CLR函数）
原代码来自：东莞--小小大神
使用
--聚合函数
SELECT father_key,dbo.String_Agg(department_name) FROM dbo.b_department
GROUP BY father_key
--首字母大写
SELECT dbo.[Capit](null),dbo.capit('我是 xiaoxiao a')
--计算表达式的值
SELECT dbo.Fn_Cacl('1+6*2*(1+1)')
--日期时间格式化
SELECT
dbo.FormatDateTime(GETDATE(),'yyyy年MM月dd日'),
dbo.FormatDateTime(GETDATE(),'yyyy-MM-dd hh:mm:ss'),
dbo.FormatDateTime(GETDATE(),'mm:ss'),
dbo.FormatDateTime(GETDATE(),'yyyy/M/d'),
dbo.FormatDateTime(GETDATE(),'dd/MM/yyyy')
--四舍六入五成双
SELECT dbo.MyRound(5.25,1),dbo.MyRound(5.35,1)
--字符串处理
SELECT dbo.TrimAll('0124我是在测试789',''), dbo.PadLeft('我',10,''),dbo.PadRight('我',10,''),
dbo.TrimEnd('0124我是在测试789',''),dbo.TrimStart('0124我是在测试789','')
,dbo.ToSBC('wo'),dbo.ToDBC('ｗｏ'),dbo.charat('1,2,3,4,5',',',0),dbo.MyTrim(' 000 ')
--字符串拆分
SELECT * FROM dbo.String_Split('1,2,3,4',',')
--连续数字
SELECT * FROM dbo.Ft_GetNumbers(11) --正则表达式匹配替换
SELECT dbo.Reg_Match('我是12的','\d'),dbo.Reg_CharIndex('我是12的','\d'),dbo.Reg_Replace('我是12的','\d','')
--正则表达式拆分
SELECT * FROM dbo.Reg_Split('1A 2B 3C 4D 5E 6F的 7G 8H 9I 10J 11Q 12J 13K 14L 15M 16N ffee80 #800080','\d+[A-Z] ')
--取第i个逗号分割的字符串
SELECT dbo.CharAt('1,2,3,4,5,6',',',2)
定义，这里是已经编译好的DLL
ALTER DATABASE master SET TRUSTWORTHY ON
go CREATE ASSEMBLY [Database2]
FROM 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WITH PERMISSION_SET = UNSAFE
GO /* --报错
消息 10327，级别 14，状态 1，第 1 行
针对程序集 'Database2' 的 CREATE ASSEMBLY 失败，因为程序集 'Database2' 未获授权，
不满足 PERMISSION_SET = UNSAFE。满足以下两个条件之一时将给程序集授权:
数据库所有者(DBO)拥有 UNSAFE ASSEMBLY 权限，且数据库具有 TRUSTWORTHY 数据库属性；
或者，程序集已使用其对应登录名具有 UNSAFE ASSEMBLY 权限的证书或非对称密钥加以签名。 --解决
ALTER DATABASE master SET TRUSTWORTHY ON
go
*/ exec sp_configure 'show advanced options',1
reconfigure
exec sp_configure 'clr enabled',1
reconfigure
exec sp_configure 'show advanced options',0
RECONFIGURE
go /*
DROP AGGREGATE String_Agg
DROP FUNCTION Capit
DROP FUNCTION Fn_Cacl
DROP FUNCTION FormatDateTime
DROP FUNCTION MyRound
DROP FUNCTION MyTrim
DROP FUNCTION PadLeft
DROP FUNCTION PadRight
DROP FUNCTION Reg_CharIndex
DROP FUNCTION Reg_Match
DROP FUNCTION Reg_Replace
DROP FUNCTION ToDBC
DROP FUNCTION ToSBC
DROP FUNCTION TrimAll
DROP FUNCTION TrimEnd
DROP FUNCTION TrimStart
DROP FUNCTION Ft_GetNumbers
DROP FUNCTION Reg_Split
DROP FUNCTION String_Split
DROP PROCEDURE BulkCopyToXls
DROP PROCEDURE sp_getman
DROP PROCEDURE sp_postman
DROP PROCEDURE sp_ReadTxt
DROP FUNCTION CharAt
DROP FUNCTION ft_clearing
DROP ASSEMBLY database2
*/
--CLR CREATE AGGREGATE [dbo].[String_Agg](@value NVARCHAR (4000))
RETURNS NVARCHAR (4000)
EXTERNAL NAME [Database2].[String_Agg]
go CREATE FUNCTION [dbo].[Capit]
(@input NVARCHAR (MAX))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[Capit] GO
CREATE FUNCTION [dbo].[Fn_Cacl]
(@exp NVARCHAR (1000))
RETURNS NVARCHAR (1000)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[Fn_Cacl] GO
CREATE FUNCTION [dbo].[FormatDateTime]
(@input DATETIME, @fmt NVARCHAR (200))
RETURNS NVARCHAR (200)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[FormatDateTime] GO
CREATE FUNCTION [dbo].[MyRound]
(@val FLOAT (53), @dec SMALLINT)
RETURNS FLOAT (53)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[MyRound] GO
CREATE FUNCTION [dbo].[MyTrim]
(@input NVARCHAR (MAX))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[MyTrim] GO
CREATE FUNCTION [dbo].[PadLeft]
(@input NVARCHAR (MAX), @i INT, @c NVARCHAR (1000))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[PadLeft] GO
CREATE FUNCTION [dbo].[PadRight]
(@input NVARCHAR (MAX), @i INT, @c NVARCHAR (1000))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[PadRight] GO
CREATE FUNCTION [dbo].[Reg_CharIndex]
(@input NVARCHAR (MAX), @sp NVARCHAR (1000))
RETURNS INT
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[Reg_CharIndex] GO
CREATE FUNCTION [dbo].[Reg_Match]
(@input NVARCHAR (MAX), @sp NVARCHAR (1000))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[Reg_Match] GO
CREATE FUNCTION [dbo].[Reg_Replace]
(@input NVARCHAR (MAX), @sp NVARCHAR (1000), @x NVARCHAR (1000))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[Reg_Replace]
Go /*
CREATE FUNCTION [dbo].[ft_clearing]
(@input NVARCHAR (MAX))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[ft_clearing]
GO
*/ CREATE FUNCTION [dbo].[ToDBC]
(@input NVARCHAR (MAX))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[ToDBC] GO
CREATE FUNCTION [dbo].[ToSBC]
(@input NVARCHAR (MAX))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[ToSBC] GO
CREATE FUNCTION [dbo].[TrimAll]
(@input NVARCHAR (MAX), @chars NVARCHAR (100))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[TrimAll] GO
CREATE FUNCTION [dbo].[TrimEnd]
(@input NVARCHAR (MAX), @chars NVARCHAR (100))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[TrimEnd] GO
CREATE FUNCTION [dbo].[TrimStart]
(@input NVARCHAR (MAX), @chars NVARCHAR (100))
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[TrimStart] GO
CREATE FUNCTION [dbo].[Ft_GetNumbers]
(@n INT)
RETURNS
TABLE (
[Val] INT NULL)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[Ft_GetNumbers] GO CREATE FUNCTION [dbo].[Reg_Split]
(@input NVARCHAR (MAX), @sp NVARCHAR (1000))
RETURNS
TABLE (
[id] INT,
[Val] NVARCHAR (4000) NULL)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[Reg_Split] GO
CREATE FUNCTION [dbo].[String_Split]
(@input NVARCHAR (MAX), @sp NVARCHAR (1))
RETURNS
TABLE (
[id] INT,
[Val] NVARCHAR (4000) NULL)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[String_Split] GO
CREATE PROCEDURE [dbo].[BulkCopyToXls]
@sql NVARCHAR (4000), @savePath NVARCHAR (1000), @tableName NVARCHAR (200), @maxRecordCount INT
AS EXTERNAL NAME [Database2].[myProcedure].[BulkCopyToXls] GO
CREATE PROCEDURE [dbo].[sp_getman]
@url NVARCHAR (1000), @result NVARCHAR (MAX) OUTPUT
AS EXTERNAL NAME [Database2].[StoredProcedures].[sp_getman] GO
CREATE PROCEDURE [dbo].[sp_postman]
@url NVARCHAR (1000), @json NVARCHAR (4000), @result NVARCHAR (MAX) OUTPUT
AS EXTERNAL NAME [Database2].[StoredProcedures].[sp_postman] GO
CREATE PROCEDURE [dbo].[sp_ReadTxt]
@file NVARCHAR (1000), @coding NVARCHAR (100)
AS EXTERNAL NAME [Database2].[StoredProcedures].[sp_ReadTxt] GO
CREATE FUNCTION [dbo].[CharAt]
(@input NVARCHAR (MAX), @chars NVARCHAR (100),@i int)
RETURNS NVARCHAR (MAX)
AS
EXTERNAL NAME [Database2].[UserDefinedFunctions].[CharAt]
C#源码
--1、 sql function 1 using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
using System.Collections;
using System.Text.RegularExpressions;
using System.Globalization;
using System.Threading;
using System.Text; public partial class UserDefinedFunctions
{
/*
表值函数,生成N条记录,测试用,速度不错哦
*/
struct Table
{
public int n;
public Table(int n)
{
this.n = n;
}
} [SqlFunction(FillRowMethodName = "Fill", TableDefinition = "Val int")]
public static IEnumerable Ft_GetNumbers(int n)
{
for (int i = 1; i <= n; i++)
{
yield return new Table(i);
}
} private static void Fill(object source, out int n)
{
Table pi = (Table)source;
n = pi.n;
} [SqlFunction]
public static string PadLeft(string input, int i, string c)
{
if (input == null)
return null; //字符补齐
if (string.IsNullOrEmpty(c))
return input.PadLeft(i, ' ');
else
return input.PadLeft(i, c.ToCharArray()[]);
} [SqlFunction]
public static string PadRight(string input, int i, string c)
{
if (input == null)
return null; //字符补齐
if (string.IsNullOrEmpty(c))
return input.PadRight(i, ' ');
else
return input.PadRight(i, c.ToCharArray()[]);
} [SqlFunction]
public static string MyTrim(string input )
{
if (input == null)
return null; return input.Trim( );
} [SqlFunction]
public static string TrimAll(string input,string chars)
{
if (input == null)
return null; return input.Trim(chars.ToCharArray());
} [SqlFunction]
public static string TrimStart(string input, string chars)
{
if (input == null)
return null; return input.TrimStart(chars.ToCharArray());
} [SqlFunction]
public static string TrimEnd(string input, string chars)
{
if (input == null)
return null; return input.TrimEnd(chars.ToCharArray());
} [SqlFunction]
public static string FormatDateTime(DateTime? input, string fmt )
{
if (input==null)
{
return null;
}
return Convert.ToDateTime(input).ToString(fmt);
} [SqlFunction]
public static SqlString ToSBC(string input)
{
if (input == null)
return null; //半角转全角：
char[] c = input.ToCharArray();
for (int i = 0; i < c.Length; i++)
{
if (c[i] == 32)
{
c[i] = (char)12288;
continue;
}
if (c[i] < 127)
c[i] = (char)(c[i] + 65248);
} return new string(c);
}
[SqlFunction]
public static string ToDBC(string input)
{
if (input == null)
return null; //全角转半角：
char[] c = input.ToCharArray();
for (int i = 0; i < c.Length; i++)
{
if (c[i] == 12288)
{
c[i] = (char)32;
continue;
}
if (c[i] > 65280 && c[i] < 65375)
c[i] = (char)(c[i] - 65248);
}
return new string(c);
} /*
表值函数,字符串拆分,这个有用
*/
struct Table2
{
public string s;
public int i;
public Table2(int i, string s)
{
this.i=i;
this.s = s;
} } private static void Fill2(object source,out int i, out string s)
{
Table2 T = (Table2)source;
s = T.s;
i = T.i;
} /*
表值函数,字符提取,可以写正则表达式匹配和替换的函数,有用
*/
[SqlFunction(FillRowMethodName = "Fill2", TableDefinition = "id int,Val nvarchar(4000)")]
public static IEnumerable Reg_Split(string input, string sp)
{
if (input != null)
{
int i = 1;
Match match = Regex.Match(input, sp);
while (match.Success)
{ yield return new Table2(i++,match.Value);
match = match.NextMatch();
}
}
} [SqlFunction(FillRowMethodName = "Fill2", TableDefinition = "Val nvarchar(4000)")]
public static IEnumerable String_Split(string input, string sp)
{
if (input != null)
{
int i = 1;
foreach (string s in input.Split(sp.ToCharArray()[]))
{
yield return new Table2(i++,s);
}
}
} [SqlFunction]
public static string Reg_Match(string input, string sp)
{
if (input == null)
return null;
return Regex.IsMatch(input, sp).ToString();
} [SqlFunction]
public static int Reg_CharIndex(string input, string sp)
{
if (input == null)
return -1; Match match = Regex.Match(input, sp);
if (match.Success)
return match.Index + 1;
return 0;
} [SqlFunction]
public static string CharAt(string input, string chars, int i)
{
if (input == null)
return null; try
{
return input.Split(chars.ToCharArray()[])[i];
}
catch
{
return null;
}
} [SqlFunction]
public static string Reg_Replace(string input, string sp, string x)
{
if (input == null)
return null; Regex rx = new Regex(sp);
return rx.Replace(input, x);
} [SqlFunction]
public static string ft_clearing(string input)
{
if (input == null)
return ""; Regex rx = new Regex(@"\s");
return rx.Replace(input, "").Trim();
} [SqlFunction]
public static string Capit(string input)
{
if (input == null)
return null; //首字母大写,很有用,速度非常好,神速
TextInfo tx = Thread.CurrentThread.CurrentCulture.TextInfo;
return tx.ToTitleCase(input);
} [Microsoft.SqlServer.Server.SqlFunction]
public static SqlDouble MyRound(SqlDouble val, SqlInt16 dec)
{
return Math.Round( val.Value, dec.Value);
} [SqlFunction(DataAccess = DataAccessKind.Read)]
public static string Fn_Cacl(string exp)
{
string sql = string.Format("select {0}", exp); using (SqlConnection cn = new SqlConnection("context connection=true"))
{
cn.Open();
string select = Convert.ToString(sql); try
{
SqlCommand cmd = new SqlCommand(Convert.ToString(sql), cn);
return cmd.ExecuteScalar().ToString(); }
catch (Exception ex)
{
return null;
}
} } } -- 2、SqlAggregate1.cs
using System;
using System.Data;
using Microsoft.SqlServer.Server;
using System.Data.SqlTypes;
using System.IO;
using System.Text; [Serializable]
[SqlUserDefinedAggregate(Format.UserDefined, IsInvariantToNulls = true, IsInvariantToDuplicates = false, IsInvariantToOrder = false, MaxByteSize = 8000)]
public class String_Agg : IBinarySerialize
{
//字符串拼接,这个有用
private StringBuilder sb; public void Init()
{
this.sb = new StringBuilder();
} public void Accumulate(SqlString value)
{
if (value.IsNull)
{
return;
} this.sb.Append(value.Value).Append(',');
} public void Merge(String_Agg other)
{
this.sb.Append(other.sb);
} public SqlString Terminate()
{
string output = string.Empty;
if (this.sb != null
&& this.sb.Length > 0)
{
output = this.sb.ToString(0, this.sb.Length - 1);
} return new SqlString(output);
} public void Read(BinaryReader r)
{
sb = new StringBuilder(r.ReadString());
} public void Write(BinaryWriter w)
{
w.Write(this.sb.ToString());
}
} --3、SqlStoredProcedure1.cs
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
using System.Net;
using System.IO;
using System.Text; public partial class StoredProcedures
{
[Microsoft.SqlServer.Server.SqlProcedure]
public static void sp_postman(string url,string json,out string result)
{
result = "";
try
{
result = PostUrl(url, json);
}
catch (Exception ex)
{
SqlContext.Pipe.Send(ex.Message);
} } [Microsoft.SqlServer.Server.SqlProcedure]
public static void sp_getman(string url, out string result)
{
result = "";
try
{
result = GetUrl(url);
}
catch (Exception ex)
{
SqlContext.Pipe.Send(ex.Message);
} } public static string GetUrl(string url )
{ HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
req.Method = "GET";
req.ProtocolVersion = HttpVersion.Version10;
if (url.ToLower().StartsWith("https:"))
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
}
else
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
}
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
StreamReader rd = new StreamReader(res.GetResponseStream());
return rd.ReadToEnd();
} public static string PostUrl(string url, string postData)
{
string result = ""; HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); req.Method = "POST"; req.Timeout = 5000; req.ContentType = "application/json"; req.ProtocolVersion = HttpVersion.Version10; if (url.ToLower().StartsWith("https:"))
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
}
else
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
} byte[] data = Encoding.UTF8.GetBytes(postData); req.ContentLength = data.Length; using (Stream reqStream = req.GetRequestStream())
{
reqStream.Write(data, 0, data.Length); reqStream.Close();
} HttpWebResponse resp = (HttpWebResponse)req.GetResponse(); Stream stream = resp.GetResponseStream(); //获取响应内容
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
{
result = reader.ReadToEnd();
} return result;
} [Microsoft.SqlServer.Server.SqlProcedure]
public static void sp_ReadTxt(string file,string coding)
{
try
{
StreamReader sr = null; switch (coding.ToLower())
{
case "default":
sr = new StreamReader(file, System.Text.Encoding.Default);
break;
case "unicode":
sr = new StreamReader(file, System.Text.Encoding.Unicode);
break;
case "utf32":
sr = new StreamReader(file, System.Text.Encoding.UTF32);
break;
case "utf7":
sr = new StreamReader(file, System.Text.Encoding.UTF7);
break;
case "utf8":
sr = new StreamReader(file, System.Text.Encoding.UTF8);
break;
case "ascii":
sr = new StreamReader(file, System.Text.Encoding.ASCII);
break;
case "bigendianunicode":
sr = new StreamReader(file, System.Text.Encoding.BigEndianUnicode);
break;
default:
sr = new StreamReader(file, System.Text.Encoding.Default);
break;
}
string line;
while ((line = sr.ReadLine()) != null)
{
SqlContext.Pipe.Send(line);
}
sr.Close();
}
catch (Exception ex)
{
SqlContext.Pipe.Send(ex.Message);
}
}
} --4、SqlStoredProcedure2.cs using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server; public partial class myProcedure
{
[Microsoft.SqlServer.Server.SqlProcedure]
public static void BulkCopyToXls(SqlString sql, SqlString savePath, SqlString tableName, SqlInt32 maxRecordCount)
{
if (sql.IsNull || savePath.IsNull || tableName.IsNull)
{
SqlContext.Pipe.Send(" 输入信息不完整！");
} //每个excel文件最大容纳65534
ushort _maxRecordCount = ushort.MaxValue - 1; if (maxRecordCount.IsNull == false && maxRecordCount.Value < ushort.MaxValue && maxRecordCount.Value > 0)
_maxRecordCount = (ushort)maxRecordCount.Value; ExportXls(sql.Value, savePath.Value, tableName.Value, _maxRecordCount);
} private static void ExportXls(string sql, string savePath, string tableName, System.UInt16 maxRecordCount)
{
//创建文件路径
if (System.IO.Directory.Exists(savePath) == false)
{
System.IO.Directory.CreateDirectory(savePath);
} using (SqlConnection conn = new SqlConnection("context connection=true"))
{
conn.Open();
using (SqlCommand command = conn.CreateCommand())
{
command.CommandText = sql;
using (SqlDataReader reader = command.ExecuteReader())
{
int i = 0;
int totalCount = 0;
int tick = System.Environment.TickCount; SqlContext.Pipe.Send(" 开始导出数据");
while (true)
{
string fileName = string.Format(@"{0}/{1}_{2}.xls", savePath, tableName, i++);
int iExp = Write(reader, maxRecordCount, fileName);
long size = new System.IO.FileInfo(fileName).Length;
totalCount += iExp;
SqlContext.Pipe.Send(string.Format(" 文件{0}, 共{1} 条, 大小{2} 字节", fileName, iExp, size.ToString("###,###")));
if (iExp < maxRecordCount) break;
} tick = System.Environment.TickCount - tick;
SqlContext.Pipe.Send(" 导出数据完成");
SqlContext.Pipe.Send("-------");
SqlContext.Pipe.Send(string.Format(" 共{0} 条数据，耗时{1}ms", totalCount, tick));
}
}
} } private static void WriteObject(ExcelWriter writer, object obj, System.UInt16 x, System.UInt16 y)
{
//判断写数字还是写字符
string type = obj.GetType().Name.ToString();
switch (type)
{
case "SqlBoolean":
case "SqlByte":
case "SqlDecimal":
case "SqlDouble":
case "SqlInt16":
case "SqlInt32":
case "SqlInt64":
case "SqlMoney":
case "SqlSingle":
if (obj.ToString().ToLower() == "null")
writer.WriteString(x, y, obj.ToString());
else
writer.WriteNumber(x, y, Convert.ToDouble(obj.ToString()));
break;
default:
writer.WriteString(x, y, obj.ToString());
break;
}
} private static int Write(SqlDataReader reader, System.UInt16 count, string fileName)
{
int iExp = count;
ExcelWriter writer = new ExcelWriter(fileName);
writer.BeginWrite(); try
{
//写字段信息
for (System.UInt16 j = 0; j < reader.FieldCount; j++)
{
writer.WriteString(0, j, reader.GetName(j));
} //循环一行一行读入数据
for (System.UInt16 i = 1; i <= count; i++)
{
if (reader.Read() == false)
{
iExp = i - 1;
break;
}
//循环一格一格写入数据
for (System.UInt16 j = 0; j < reader.FieldCount; j++)
{
WriteObject(writer, reader.GetSqlValue(j), i, j);
}
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
writer.EndWrite();
}
return iExp;
} public class ExcelWriter
{
System.IO.FileStream _wirter;
//创建文件
public ExcelWriter(string strPath)
{
_wirter = new System.IO.FileStream(strPath, System.IO.FileMode.OpenOrCreate);
} //写数组
private void _writeFile(System.UInt16[] values)
{
foreach (System.UInt16 v in values)
{
byte[] b = System.BitConverter.GetBytes(v);
_wirter.Write(b, 0, b.Length);
}
} //写文件头
public void BeginWrite()
{
_writeFile(new System.UInt16[] { 0x809, 8, 0, 0x10, 0, 0 });
}
//文件尾
public void EndWrite()
{
_writeFile(new System.UInt16[] { 0xa, 0 });
_wirter.Close();
}
//写数字到单元格
public void WriteNumber(System.UInt16 x, System.UInt16 y, double value)
{
_writeFile(new System.UInt16[] { 0x203, 14, x, y, 0 });
byte[] b = System.BitConverter.GetBytes(value);
_wirter.Write(b, 0, b.Length);
}
//写字符到单元格
public void WriteString(System.UInt16 x, System.UInt16 y, string value)
{
byte[] b = System.Text.Encoding.Default.GetBytes(value);
_writeFile(new System.UInt16[] { 0x204, (System.UInt16)(b.Length + 8), x, y, 0, (System.UInt16)b.Length });
_wirter.Write(b, 0, b.Length);
}
}
};
C#源码
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