Excel VBA(Visual Basic for Applications)是Microsoft Excel的内置编程语言,允许用户自定义功能和自动化任务。表格抓取(Table Scraping)是指从网页或其他数据源中提取表格数据并将其导入到Excel中的过程。
原因:
解决方法:
Sub WebTableScraping()
Dim ie As Object
Dim html As Object
Dim table As Object
Dim tr As Object
Dim td As Object
Dim ws As Worksheet
Dim i As Integer, j As Integer
Set ie = CreateObject("InternetExplorer.Application")
ie.Visible = False
ie.Navigate "http://example.com/table.html"
Do While ie.Busy Or ie.ReadyState <> 4
DoEvents
Loop
Set html = ie.Document
Set table = html.getElementById("tableId")
Set ws = ThisWorkbook.Sheets("Sheet1")
i = 1
For Each tr In table.getElementsByTagName("tr")
j = 1
For Each td In tr.getElementsByTagName("td")
ws.Cells(i, j).Value = td.innerText
j = j + 1
Next td
i = i + 1
Next tr
ie.Quit
End Sub
原因:
解决方法:
OpenTextFile
方法指定正确的编码。Sub ImportCSV()
Dim fso As Object
Dim ts As Object
Dim line As String
Dim parts() As String
Dim ws As Worksheet
Dim i As Integer
Set fso = CreateObject("Scripting.FileSystemObject")
Set ts = fso.OpenTextFile("C:\path\to\file.csv", 1, False, -4) ' -4 for UTF-8 encoding
Set ws = ThisWorkbook.Sheets("Sheet1")
Do While Not ts.AtEndOfStream
line = ts.ReadLine
parts = Split(line, ",")
For i = 0 To UBound(parts)
ws.Cells(ws.Rows.Count, i + 1).End(xlUp).Offset(1, i).Value = parts(i)
Next i
Loop
ts.Close
End Sub
通过以上内容,您可以了解Excel VBA中表格抓取的基础概念、优势、类型、应用场景以及常见问题的解决方法。希望这些信息对您有所帮助。
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