程序代码
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Dim q As String
Dim p As String
Private Sub Command1_Click()
On Error GoTo 1
jiaohuan p, q
Text1.Text = q
Text2.Text = p
1: End Sub
Private Sub Form_Load()
q = "abcdel"
p = "123456"
Text1.Text = q
Text2.Text = p
End Sub
Private Function jiaohuan(ByRef str1 As String, ByRef str2 As String)
Dim p
CopyMemory ByVal VarPtr(p), ByVal VarPtr(str2), 4
CopyMemory ByVal VarPtr(str2), ByVal VarPtr(str1), 4
CopyMemory ByVal VarPtr(str1), ByVal VarPtr(p), 4
End Function
