代码：

public DataTable TXTToDataTable(string fileName, string columnName) { DataTable dt = new DataTable(); FileStream fs = new FileStream(fileName, System.IO.FileMode.Open, System.IO.FileAccess.Read); StreamReader sr = new StreamReader(fs, System.Text.Encoding.Default); //记录每次读取的一行记錄 string strLine = ""; //記錄每行記錄中的各字段内容 string[] aryLine; //标示列数 int columnCount = 0; //标示是否是读取的第一行 bool IsFirst = true; if (IsFirst == true) { //strLine = "ATTENDANCE_DATE,EMP,ATTENDANCE_DEPT,EMP_TYPE,SHITF,PLANT_CODE"; strLine = columnName; aryLine = strLine.Split(','); IsFirst = false; columnCount = aryLine.Length; //创建列 for (int i = 0; i < columnCount; i++) { DataColumn dc = new DataColumn(aryLine[i].ToUpper()); dt.Columns.Add(dc); } } //逐行读取txt中的数據 while ((strLine = sr.ReadLine()) != null) { aryLine = strLine.Split('\t');//tab分隔符 DataRow dr = dt.NewRow(); for (int j = 0; j < columnCount; j++) { dr[j] = aryLine[j].ToUpper(); } dt.Rows.Add(dr); } sr.Close(); fs.Close(); return dt; }

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