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这一篇文章用来描述QTP操作QC组件的常用函数，平时对QC的操作中可能会用到这些常用功能（代码比较长，慢慢看，要达到理解的目的）：
'*****************************************************************************************
'名称：GetAttachmentFromQC
'说明：从QC服务器上的指定对象(Test、TestSet或者Defect)中找到指定名称的附件，下载到指定目录
'输入：
' TestObject - QC上的对象：Test、TestSet或Defect
' FileName - 下载目标文件名(附件)
' DstFolder - 下载目标文件夹
'返回：
' Bool类型，True代表取附件成功，False代表取附件失败
'示例：GetAttachmentOnQC QCUtil.CurrentTest, "data_file_attached.xls", "d:/temp"
'*************************************************************************************** Public Function GetAttachmentOnQC(TestObject, FileName, DstFolder)
On Error Resume Next
'初始化函数返回值
GetAttachmentOnQC = False
'为DstFolder变量添加路径斜杠"/"
If Right(DstFolder, 1) <> "/" Then
DstFolder = DstFolder & "/"
End If
'取得AttachmentList对象，即TestObject的所有附件
Set AttachmentFactory = TestObject.Attachments
Set AttachmentList = AttachmentFactory.NewList("SELECT * FROM CROS_REF")
'先删除本地的文件.
Set fso = CreateObject("Scripting.FileSystemObject")
If fso.FileExists(DstFolder & Filename) then
fso.DeleteFile DstFolder & Filename '删除文件
End if
Set fso = Nothing
'遍历TestObject对象的所有附件，找到名称为FileName的附件。附件
For Each Attachment in AttachmentList
If InStr(1,Attachment.Name, FileName, 1) >= 1 Then
Set AttachmentStorage = Attachment.AttachmentStorage
AttachmentStorage.ClientPath=DstFolder
AttachmentStorage.Load Attachment.Name,True
'下载后重命名，去掉QC附件前缀。类似Test_#_Filename
RenameFile DstFolder & Attachment.Name, DstFolder & Filename
GetAttachmentOnQC = True
Exit Function
End If
Next
'错误情况处理
If Err.Number <> 0 Then
Err.Clear
GetAttachmentOnQC = False
On Error GoTo 0
End If
End Function
'***************************************************************************************
'名称：AddAttachmentOnQC
'说明：向QC服务器上的指定对象(Test、TestSet或者Defect)中添加附件
'输入：
' TestObject - QC上的对象：Test、TestSet或Defect
' FileName - 上传目标文件名(完全路径文件名，Full Path Name)
'返回：
' Bool类型，True代表上传附件成功，False代表上传附件失败
'示例：AddAttachmentOnQC QCUtil.CurrentTest, "d:/temp/data_file_attached.xls"
'***************************************************************************************
Public Function AddAttachmentOnQC(TestObject, FileName)
On Error Resume Next
'初始化函数返回值
AddAttachmentOnQC = False
'通过AddItem(Null)方法取得Attachment对象
Set AttachmentFactory = TestObject.Attachments
Set Attachment = AttachmentFactory.AddItem(Null)
'上传文件并更新
Attachment.FileName = FileName
Attachment.Type = 1
Attachment.Post
Attachment.Refresh
AddAttachmentOnQC = True
'错误情况处理
If Err.Number <> 0 Then
Err.Clear
GetAttachmentOnQC = False
On Error GoTo 0
End If
End Function
'***************************************************************************************
'名称：ReplaceAttachmentOnQC
'说明：替换QC服务器上指定对象(Test、TestSet或者Defect)的附件
'输入：
' TestObject - QC上的对象：Test、TestSet或Defect
' OldFileName - 待删除文件名
' NewFileName - 待上传文件名(完全路径文件名，Full Path Name)
'返回：
' Bool类型，True代表替换附件成功，False代表替换附件失败
'示例：ReplaceAttachmentOnQC QCUtil.CurrentTest, "data_file_attached.xls", "d:/temp/data_file_attached.xls"
'***************************************************************************************
Public Function ReplaceAttachmentOnQC(TestObject, OldFileName, NewFileName)
On Error Resume Next
'初始化函数返回值
ReplaceAttachmentOnQC = False
'用Filter取得TestObject中符合FileName条件的附件
Set AttachmentFactory = TestObject.Attachments
Set AttachmentFilter = AttachmentFactory.Filter
'由于QC中保存的附件名称前都添加了如Test_#_的前缀
'需要对OldFileName进行处理，使Filter中使用的条件包含*
OldFileName = Trim(OldFileName)
If InStr(1, OldFileName, "*") = 1 Then
AttachmentFilter.Filter("CR_REFERENCE") = OldFileName
Else
AttachmentFilter.Filter("CR_REFERENCE") = "*" & OldFileName
End If
'从经过搜索的附件List中删除附件
Set AttachmentList = AttachmentFactory.NewList(AttachmentFilter.Text)
'如果找到一个或一个以上附件，取第一个附件删除并继续上传新文件
If AttachmentList.Count > 0 Then
Set Attachment = AttachmentList.Item(1)
AttachmentFactory.RemoveItem(Attachment.ID)
'上传更新的附件
ReplaceAttachmentOnQC = AddAttachmentOnQC(TestObject, NewFileName)
Else
'如果没有找到附件，返回False。不继续上传新文件
ReplaceAttachmentOnQC = False
End If
'错误情况处理
If Err.Number <> 0 Then
Err.Clear
ReplaceAttachmentOnQC = False
On Error GoTo 0
End If
End Function
'***************************************************************************************