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C++ Linker-->Link with Dynamic RTL 设为 false 2. Packages-->Runtime Packages-->Link with runtime packages 设为 false......

builder c++packages linkwithruntimepackages falsec linker linkwithdynamicrtl false2 runtimepackages

07/04 05:53

88

Con->ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" "Extended Properties=\"Excel 8.0;HDR=Yes\";" "Data Source=表名称.xls;" "Persist Security Info=False"; Con->Open(); AD...

04/12 12:10

91

json 数据如下: [ {"classname": "錦2", "students": [ "孙悟空錦", "猪悟能錦" ] }, {"classname": "錦2", "students": [ "白龙马錦", "沙悟净錦" ] } ] 要用 RapidJson 直接解...

json rapidjson classname document students utf8 parse utf8toascii getstring stringnm memo1

02/01 13:12

89

String str1 = "孙悟空錦錦"; // csdn 论坛方法 2 测试失败 vs ， gt c++未测试 // std::wstring_convert > converter; // std::string str2 = converter.......

01/30 19:07

92

procedure TFormMain.CopyRectFromImage2ToImage1; var Bitmap: TBitmap; Source, Dest: TRect; begin Source := rect(Image1.Left, Image1.Top, Image1.Left + Image1.Width, Image1.Top + ...

01/19 11:22

76

当使用 Delphi DBExpress 进行数据库连接时，可以使用 TSQLConnection 组件来实现连接池。下面是一个简单的示例代码，演示了如何创建一个基本的连接池： unit uDBConnectionPool; interface ...

delphi

2023/12/18 08:12

84

private void btnOK_Click(object sender, EventArgs e) { // 准备照片数据 byte[] b = null; if (txtFilePath != "") //......

c#

.net

2023/12/12 08:32

128

using System; using System.Collections.Generic; using System.Text; using System.Data; using System.Configuration; using MySql.Data.MySqlClient; namespace MySqlDBHelper { class D...

c#数据库相关服务器软件

.net

2023/11/29 06:56

87

3

void __fastcall TForm1::btnInsertImgClick(TObject *Sender) { TMemoryStream* sr = new TMemoryStream; TSQLConnection *conn = new TSQLConnection(NULL); conn->DriverName = "MySQL"; ...

c++mysql builderdbexpress

2023/11/28 16:46

196

procedure TForm1.Button1Click(Sender: TObject); var stream: TFileStream; begin SQLQuery1.SQL.Text := 'INSERT INTO t_user(UserName,`img`) VALUES (:UserName, :img)'; SQLQuery1.Par...

2023/11/28 16:43

90

DELIMITER // CREATE DEFINER=`root`@`%` FUNCTION `get_token`( `pUserName` VARCHAR(50), `pPassword` VARCHAR(50) ) RETURNS varchar(255) CHARSET utf8 LANGUAGE SQL NOT DETERMINISTIC ...

mysql

MySQL

2023/11/01 06:15

42

2

#include <System.Classes.hpp> #include <IniFiles.hpp> #include <iostream> using namespace std; class MySQLConfig { private: TIniFile* iniFile; AnsiString ServerName; AnsiSt......

c++mysql

2023/11/01 06:08

65

Format - C++ Builder 字符串格式化例：int i = 5; double f = 1.356; 以下 3 条代码都能得到 L"i=5, f=1.36" 的字符串 s UnicodeString s; s.sprintf(L"i=%d, f=%.2f", i, f); s.printf(L"...

builder sprintf c++format doublef inti void arrayofconst sunicodestrings button1click

2023/10/11 15:35

137

2

void __fastcall TForm1::ConnectDatabase() { con->Params->Clear(); con->DriverName="MySQL"; con->Params->Add("HostName=127.0.0.1"); con->Params->Add("User-Name=root"); con->Param...

mysql dbexpress

2023/08/31 13:50

122

3

[ {"FieldOutputGroup":"BBR","CName":"被保人序号","EName":"BBRNO","val":["孙悟空","",""]}, {"FieldOutputGroup":"TBR","CName":"日期","EName":"DATE","val":["孙悟空","孙悟空","孙悟空...

2022/12/31 13:26

1K

procedure TForm1.RzButton3Click(Sender: TObject); var ary: TArray<string>; re: TRegEx; // use RegularExpressions XE2 i: integer; begin re := TRegEx.Create('A.|B.|C.|D.|E.|F.'); ...

2022/11/02 16:45

105