写入 Excel 内容，参数：excelTable 是要导入 excel 的一个 table
表
1. public static bool SaveDataTableToExcel(System.Data.DataTable excelTable, strin
g filePath)
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{
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Microsoft.Office.Interop.Excel.Application app =
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new Microsoft.Office.Interop.Excel.ApplicationClass();
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try
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{
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app.Visible = false;
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Workbook wBook = app.Workbooks.Add(true);
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Worksheet wSheet = wBook.Worksheets[1] as Worksheet;
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if (excelTable.Rows.Count > 0)
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{
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int row = 0;
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row = excelTable.Rows.Count;
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int col = excelTable.Columns.Count;
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for (int i = 0; i < row; i++)
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{
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for (int j = 0; j < col; j++)
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{
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string str = excelTable.Rows[i][j].ToString();
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wSheet.Cells[i + 2, j + 1] = str;
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}
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}
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}
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int size = excelTable.Columns.Count;
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for (int i = 0; i < size; i++)
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{
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wSheet.Cells[1, 1 + i] = excelTable.Columns[i].ColumnName;
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}
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//设置禁止弹出保存和覆盖的询问提示框
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app.DisplayAlerts = false;
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app.AlertBeforeOverwriting = false;
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//保存工作簿
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wBook.Save();
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//保存 excel 文件
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app.Save(filePath);
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app.SaveWorkspace(filePath);
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app.Quit();
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app = null;