Standing in the main hall of the airport, passengers can easily find the different destinations on the large electric board _______ which airlines can take them. [ ]
【简答题】运行下面程序,其输出结果(str2的值)为【 】。 Dim str l,str2 As String Dim I As Integer str l= “abcdef” For l To Len (strl) Step2 str2=UCase (Mid (strl,I ,1))十str2 Next MsgBoxstr2