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(一个String)名单于以下内容:是需要一个HashSet包含Vb.net
Dim stringlist As List(Of String)
Dim stringlisthas = stringlist.Contains("thing1")
是任何慢于
Dim stringlist As List(Of String)
Dim stringlisthash As New HashSet(Of String)(stringlist)
Dim stringlisthas = stringlisthash.Contains("thing1")
是需要包含一个HashSet?