22、l(1 主线程、4 副线程) 81: / 82: / 路径 83: / <returns>DataTabel</returns> 84: public System.Data.DataTable ThreadReadExcel(string excelFilePath) 85: 86: Excel.Application app = new Excel.Application(); 87: Excel.Sheets she 23、ets = null; 88: Excel.Workbook workbook = nu...
myreader = mycom.ExecuteReader(); /Reader读取数据DataSet ds = new DataSet();OleDbDataAda pter oda = new OleDbDataAda pter(sql, con);oda.Fill(ds, P O014);DataTable dt = ds.Tables0;也可以用FileStream fs = new FileStream(Server.MapPath(download/ + fn),FileMode.Create, FileAccess.Read...
代码仓库地址:libxls/libxls: Read binary Excel files from C/C++ (github.com) C 语言 API 相当简单,以下是一个示例: xls_error_t error = LIBXLS_OK; xlsWorkBook *wb = xls_open_file("/path/to/finances.xls", "UTF-8", &error); if (wb == NULL) { printf("Error reading file: %s\n",...
CStringsExcelFile= "c:\\demo.xls"; //要建立的Excel文件 CStringsSql; TRY { //创建进行存取的字符串 sSql.Format("DRIVER={%s};DSN='';FIRSTROWHASNAMES=1;READONLY=FALSE;CREATE_DB=\"%s\";DBQ=%s",sDriver,sExcelFile,sExcelFile); //创建数据库(既Excel表格文件) if(database.OpenEx(sSql...
如果是为了处理表格文件，那么可以将.xls或.xlsx文件另存为.csv文件后再进行读取，这样就比直接读取.xls...
Excel::RangePtr pRange = pWorksheet->Cells;const int nplot = 100;const double xlow = 0.0, xhigh = 20.0;double h = (xhigh-xlow)/(double)nplot;pRange->Item[1][1] = L"x"; // read/write cell's data pRange->Item[1][2] = L"f(x)";for (int i=0;i { double x = ...
读这个Excel文件代码如下: #include<stdio.h>voidmain(){FILE*fp;char filename[40];int i,j;float da[6][5]={0};printf(" 输入文件名: ");gets(filename);fp=fopen("as.csv","r");fseek(fp,5L,SEEK_SET);// 从文件第二行开始读取for(i=0;i<6;i++)for(j=0;j<5;j++){fscanf(fp,...
//FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read); DataTable dt = ReadAsDataTable(file);// ReadExcel(this.comboBox1.SelectedText, fs); this.dataGridView1.DataSource = dt; //fs.Close(); //fs.Dispose(); ...
(*.XLS); // Excel安装驱动CStringsExcelFile = c:\\demo.xls要; 建//立的 Excel 文件 CStringsSql; TRY { //创建进行存取的字符串sSql.Format(DRIVER={%s};DSN=;FIRSTROWHASNAMES=1;READONLY=FALSE;CREATE_DB=\% s\;DBQ=%s,sDriver, sExcelFile, sExcelFile); //创建数据库 (既 Excel 表格...
intreadfile_csv(char*filename) { charc; FILE*fp=fopen(filename,"rb"); intfile_line=1,file_row=0; fseek(fp,0,SEEK_END); longflen=ftell(fp); printf("len = %ld\n",flen); fseek(fp,0,SEEK_SET); intfd=fileno(fp);//文件指针转文件描述符 ...