vb.net 怎么批量快速读取execl上传文件中的值
时间: 2023-08-12 20:07:26 浏览: 70
你可以使用VB.NET中的Microsoft.Office.Interop.Excel库来读取Excel文件中的值。以下是一个示例代码,可以让你批量读取Excel文件中的值:
```vb.net
Imports Microsoft.Office.Interop.Excel
Public Class ExcelReader
Private excelApp As New Application
Private workbook As Workbook
Private worksheet As Worksheet
Public Sub OpenWorkbook(ByVal fileName As String)
workbook = excelApp.Workbooks.Open(fileName)
worksheet = workbook.Worksheets(1)
End Sub
Public Function ReadCellValue(ByVal row As Integer, ByVal column As Integer) As String
Dim cell As Range = worksheet.Cells(row, column)
Dim cellValue As String = cell.Value.ToString()
Return cellValue
End Function
Public Sub CloseWorkbook()
workbook.Close()
excelApp.Quit()
End Sub
End Class
```
使用这个类,你可以打开Excel文件,读取单元格的值,并在完成后关闭Excel文件。调用示例代码如下:
```vb.net
Dim reader As New ExcelReader()
reader.OpenWorkbook("C:\data\test.xlsx")
For i As Integer = 1 To 10
Dim value As String = reader.ReadCellValue(i, 1)
Console.WriteLine("Cell value: " & value)
Next
reader.CloseWorkbook()
```
这个示例代码可以读取第1列的前10行数据。你可以根据你的需求进行修改。