沒分了﹐只好少給點
我不懂VB麻煩大家幫我解釋一下以下代碼﹕(關于串口)
..........
Dim KV(2) As Byte
Dim i, MSG1, J, ID, kh
Dim LENKV, AV
Dim MSG2, MSG3, MSG4
KV(0) = &H9
KV(1) = Text2(i).Text
KV(2) = &H9 Xor Text2(i).Text
MSComm1.InBufferCount = 0
MSComm1.OutBufferCount = 0
MSComm1.Output = KV
TIMEDELAY 50
AV = MSComm1.Input
msg = ""
LENKV = UBound(AV)
Select Case LENKV
Case 7:
..........
UBound是上標?什么是上標?