Question

VB space 问题

Private Sub Command1_Click()
Dim a As String * 255
GetComputerName a, 255
a = Trim(a)
a = Left(a, Len(a) - 1)
Print Len(a)
End Sub

Private Sub Command2_Click()
Dim a As String
a = Space(255)
GetComputerName a, 255
a = Trim(a)
a = Left(a, Len(a) - 1)
Print Len(a)
End Sub
上面两个按钮显示的信息不一样为什么呢？
Dim a As String * 255
和
Dim a As String
a = Space(255)
区别在哪为什么显示不一样

Answer 1

用space得到的是空格，空格是个字符
用 Dim a As String * 255 定义出来的a 中是空的，不是空格