Vb.net如何读取excel整张表的数据

你可以使用 Microsoft.Office.Interop.Excel 命名空间中的类来读取 Excel 表格数据。以下是一个简单的示例代码，可以读取整张 Excel 表格中的数据：

Imports Microsoft.Office.Interop.Excel

Public Class Form1
    Private Sub btnReadExcel_Click(sender As Object, e As EventArgs) Handles btnReadExcel.Click
        '创建Excel对象
        Dim xlApp As New Application
        Dim xlWorkbook As Workbook = xlApp.Workbooks.Open("D:\test.xlsx") '替换为你的Excel文件路径
        Dim xlWorksheet As Worksheet = xlWorkbook.Sheets(1)

        '获取表格中的数据
        Dim range As Range = xlWorksheet.UsedRange
        Dim rowCount As Integer = range.Rows.Count
        Dim colCount As Integer = range.Columns.Count
        Dim data(rowCount - 1, colCount - 1) As Object

        For i As Integer = 1 To rowCount
            For j As Integer = 1 To colCount
                data(i - 1, j - 1) = range.Cells(i, j).Value2
            Next
        Next

        '关闭Excel对象
        xlWorkbook.Close()
        xlApp.Quit()

        '输出数据
        For i As Integer = 0 To rowCount - 1
            For j As Integer = 0 To colCount - 1
                Console.Write(data(i, j) & vbTab)
            Next
            Console.WriteLine()
        Next
    End Sub
End Class

在上面的代码中，我们使用了 Microsoft.Office.Interop.Excel 命名空间中的 Application、Workbook 和 Worksheet 类来打开 Excel 文件并读取表格中的数据。获取表格数据的过程是通过读取表格范围的行和列进行迭代来完成的。最后，我们通过循环遍历 data 数组，将表格数据输出到控制台上。