Question

我有一个包含文件夹名称，图像名称和网址的工作表。我想将每个图像下载到特定文件夹，以便结果如下所示：

Folder Name   Image Name     URL
-----------   ------------   -----------------------------------
folder1      image1         http://www.example.com/example1.jpg
folder2      image2         http://www.example.com/example2.jpg
folder3      image3         http://www.example.com/example3.jpg
folder4      image4         http://www.example.com/example4.jpg
folder5      image5         http://www.example.com/example5.jpg

C:\images\folder1\image1.jpg
C:\images\folder2\image2.jpg
C:\images\folder3\image3.jpg
C:\images\folder4\image4.jpg
C:\images\folder5\image5.jpg

我发现了这个VBA代码，它就像一个魅力，但我不知道如果它们不存在，如何添加创建文件夹的方法：

Option Explicit

Private Declare Function URLDownloadToFile Lib "urlmon" _
Alias "URLDownloadToFileA" (ByVal pCaller As Long, _
ByVal szURL As String, ByVal szFileName As String, _
ByVal dwReserved As Long, ByVal lpfnCB As Long) As Long

Dim Ret As Long

'~~> This is where the images will be saved. Change as applicable
Const FolderName As String = "C:\Temp\"

Sub Sample()
    Dim ws As Worksheet
    Dim LastRow As Long, i As Long
    Dim strPath As String

    '~~> Name of the sheet which has the list
    Set ws = Sheets("Sheet1")

    LastRow = ws.Range("A" & Rows.Count).End(xlUp).Row

    For i = 2 To LastRow '<~~ 2 because row 1 has headers
        strPath = FolderName & ws.Range("A" & i).Value & ".jpg"

        Ret = URLDownloadToFile(0, ws.Range("B" & i).Value, strPath, 0, 0)

        If Ret = 0 Then
            ws.Range("C" & i).Value = "File successfully downloaded"
        Else
            ws.Range("C" & i).Value = "Unable to download the file"
        End If
    Next i
End Sub

Answer 1

以下将确定文件夹是否存在，如果不存在，则创建它：

If Len(Dir(FolderName, vbDirectory)) = 0 Then
   MkDir FolderName
End If

从here修改

对于更高级的内容，我建议使用FileSystemObject类。

Answer 2

我在原始VBS代码中发现了一些错误。这是一个更新。

For i = 2 To LastRow '<~~ 2 because row 1 has headers
    strPath = FolderName & ws.Range("A" & i) ***& "\" & ws.Range("B" & i)***.Value & ".jpg"
    If Len(Dir(FolderName & ws.Range("A" & i) & "\", vbDirectory)) = 0 Then
        MkDir FolderName
    End If
    Ret = URLDownloadToFile(0, ***ws.Range("C" & i)***.Value, strPath, 0, 0)

该文件夹实际上位于B列，需要添加到路径
网址实际上位于C列

从URL下载图片并保存在单元格命名的文件夹中

2 个答案: