C++ builder 2010 操作Excel表格的编程实现

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "ProcessBar.h"
#include <stdio.h>     // For FILE, fopen, fstat, fileno, fread and fclose
#include <sysstat.h>  // For fstat and the stat struct
#include <Math.hpp>    // For Min
#include <memory>       //For STL auto_ptr class

//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm4 *Form4;
//---------------------------------------------------------------------------
__fastcall TForm4::TForm4(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm4::btn1Click(TObject *Sender)
{
    FILE *F;
    char MyData[2047];
    long BytesRead;

    F = fopen("../oui.txt", "r");   // Path relative to Debug
                                    // Use a file larger than 2048 bytes to make it interesting.
    if (F)
    {
    struct stat statbuf;
    fstat(fileno(F), &statbuf);
    pb1->Max = statbuf.st_size;
    if (pb1->Max > 10)
    {
      pb1->Step = (pb1->Max)/10;
      pb1->Step = Min(pb1->Step, 2047);
    }
    else
      pb1->Step = pb1->Max;
    std::auto_ptr<char> DataBuffer(new char[pb1->Step]);
    for (pb1->Position = 0;
         pb1->Position < pb1->Max;
         pb1->StepIt())  // Move the ProgressBar Position using StepIt.
    {
      fread(DataBuffer.get(), pb1->Step, 1, F);
      // Do this or else the read wraps and starts over.
      pb1->Step =
        Min(pb1->Step, pb1->Max - pb1->Position);
    }

    mmo1->Lines->Add(DataBuffer.get());

    fclose(F);
    DataBuffer.release();
    }
}
//---------------------------------------------------------------------------
void __fastcall TForm4::btn2Click(TObject *Sender)
{

    Variant vExcelApp, vWorkbook, vRange, Sheet1;
    vExcelApp = Variant::CreateObject("Excel.Application");
    vExcelApp.OlePropertySet("Visible", false);
    vExcelApp.OlePropertyGet("WorkBooks").OleProcedure("Open",
        dlgOpen1->FileName.c_str());
    vWorkbook = vExcelApp.OlePropertyGet("ActiveWorkbook");

    int BookCount = vWorkbook.OlePropertyGet("Sheets").OlePropertyGet
    ("Count");
    for (int i = 0; i < BookCount; i++)
    {
        AnsiString SheetName = vWorkbook.OlePropertyGet("Sheets", i + 1)
        .OlePropertyGet("Name");
        // ShowMessage(SheetName);

    }

    // Sheet1   =   vWorkbook.OlePropertyGet( "ActiveSheet ");
    // vExcelApp.Exec(PropertyGet( "Cells ") < <1 < <3).Exec(PropertySet( "Value ") < <15);     //赋值
    // Sheet1.OlePropertyGet( "Rows ",   1).OlePropertyGet( "Insert ");       //插入
    String kkl, hgf;
    int it = 9, st = 1;

    while (it > 8 && BookCount >= st)
    {
        vWorkbook.OlePropertyGet("Sheets", st).OleProcedure("Select");
        // 选择sheet
        for (it = 1; it <= 8; it++)
        {
            kkl = vExcelApp.Exec(PropertyGet("Cells") << 5 << it);
            //if (kkl.Pos(qz1) > 0 || kkl.Pos(qz2) > 0) // 读取
                break;
        }
        st++;
    }

    int kk = 1;
    for (kk = 1; kk <= 8; kk++)
    {
        kkl = vExcelApp.Exec(PropertyGet("Cells") << kk << it);
        //if (kkl.Pos(qz1) > 0 || kkl.Pos(qz2) > 0) // 读取
            break;
    }

    hgf = vExcelApp.Exec(PropertyGet("Cells") << kk << it + 2);
    int ki = 1;
    while (hgf.Trim() != "")
    {
        if (ki == StringGrid2->RowCount - 1)
            //StringGrid1->RowCount++;
        // kkl==vExcelApp.Exec(PropertyGet( "Cells ") < <kk < <it);

        StringGrid2->Cells[1][ki] = vExcelApp.Exec
            (PropertyGet("Cells") << kk << it); // 2-4列的数据
        StringGrid2->Cells[2][ki] = vExcelApp.Exec
            (PropertyGet("Cells") << kk << it + 1);
        StringGrid2->Cells[3][ki] = vExcelApp.Exec
            (PropertyGet("Cells") << kk << it + 2);
        kk++;
        ki++;
        hgf = vExcelApp.Exec(PropertyGet("Cells") << kk << it + 2);
    }

    vExcelApp.OlePropertyGet("ActiveSheet").OlePropertyGet("Cells ", 1, 2)
        .OleProcedure("Select");
    vRange = vExcelApp.OlePropertyGet("Selection");
    vRange.Exec(Function("Sort") << vExcelApp.OlePropertyGet("Selection")
        << 1);

    // vWorkbook.OleProcedure( "Save");
    vWorkbook.OleProcedure("Close");
    vExcelApp.OleFunction("Quit");
    vWorkbook = Unassigned;
    vExcelApp = Unassigned;
}
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