使用libxls在C中讀取excel文件

Question

我正在嘗試使用libxls創建一個讀取excel文件的應用程序。 我已經下載libxls但我不知道如何使用它。

可有人請告訴我一個最低綱領從XLS文件

Answer 1

閱讀如果你的意思libxls：

有哪些可以作爲示例代碼源存檔內部測試。 下面是libxls-1.4.0/test/test2.c內容：

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
* 
* This file is part of libxls -- A multiplatform, C/C++ library 
* for parsing Excel(TM) files. 
* 
* Redistribution and use in source and binary forms, with or without modification, are 
* permitted provided that the following conditions are met: 
* 
* 1. Redistributions of source code must retain the above copyright notice, this list of 
*  conditions and the following disclaimer. 
* 
* 2. Redistributions in binary form must reproduce the above copyright notice, this list 
*  of conditions and the following disclaimer in the documentation and/or other materials 
*  provided with the distribution. 
* 
* THIS SOFTWARE IS PROVIDED BY David Hoerl ''AS IS'' AND ANY EXPRESS OR IMPLIED 
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL David Hoerl OR 
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
* 
* Copyright 2004 Komarov Valery 
* Copyright 2006 Christophe Leitienne 
* Copyright 2008-2012 David Hoerl 
* 
*/ 

// THIS FILE LETS YOU QUICKLY FEED A .xls FILE FOR PARSING 

#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 
#include <ctype.h> 

#include "libxls/xls.h" 

int main(int argc, char *argv[]) 
{ 
    xlsWorkBook* pWB; 
    xlsWorkSheet* pWS; 
    unsigned int i; 

    if(argc != 2) { 
     printf("Need file arg\n"); 
     exit(0); 
    } 

    struct st_row_data* row; 
    WORD t,tt; 
    pWB=xls_open(argv[1],"UTF-8"); 

    if (pWB!=NULL) 
    { 
     for (i=0;i<pWB->sheets.count;i++) 
      printf("Sheet N%i (%s) pos %i\n",i,pWB->sheets.sheet[i].name,pWB->sheets.sheet[i].filepos); 

     pWS=xls_getWorkSheet(pWB,0); 
     xls_parseWorkSheet(pWS); 

printf("pWS->rows.lastrow %d\n", pWS->rows.lastrow); 
     for (t=0;t<=pWS->rows.lastrow;t++) 
     { 
printf("DO IT"); 
      row=&pWS->rows.row[t]; 
      xls_showROW(row); 
      for (tt=0;tt<=pWS->rows.lastcol;tt++) 
      { 
       xls_showCell(&row->cells.cell[tt]); 
      } 
     } 
     printf("Count of rows: %i\n",pWS->rows.lastrow); 
     printf("Max col: %i\n",pWS->rows.lastcol); 
     printf("Count of sheets: %i\n",pWB->sheets.count); 

     xls_showBookInfo(pWB); 
    } else { 
     printf("pWB == NULL\n"); 
    } 
    return 0; 
} 

如果你的意思libxl：

下面你會發現從http://www.libxl.com/ C語言編寫的一個數據讀取的例子。 此外，他們在其主頁上提供documentation和more examples。

BookHandle book = xlCreateBook(); 
if(book) 
{ 
    if(xlBookLoad(book, L"example.xls")) 
    { 
     SheetHandle sheet = xlBookGetSheet(book, 0); 
     if(sheet) 
     { 
      double d; 
      const wchar_t* s = xlSheetReadStr(sheet, 2, 1, NULL); 

      if(s) wprintf(L"%s\n", s); 

      d = xlSheetReadNum(sheet, 3, 1, NULL); 
      printf("%g\n", d); 
     } 
    }   
    xlBookRelease(book); 
}