主题：Ukey是不是只能写入字母和数字，汉字不能写入呢？

 嗯嗯，是的，中文字符还得进行转码存储，取出还得还原，如

Dim str As String = "联想Aabc"
Dim bs() As Byte = Encoding.Unicode.GetBytes(str)
Dim nstr As String = ""
For Each b As Byte In bs
    nstr &= b.ToString("x") & ","
Next
nstr = nstr.Trim(",")
output.show(nstr)

'----------------转回去

Dim strAry() As String = nstr.Split(",")
Dim bys(strAry.Length-1) As Byte
For i As Integer = 0 To strAry.Length - 1
    Bys(i) = Byte.Parse(strAry(i), System.Globalization.NumberStyles.HexNumber)
Next
Dim bstr As String = Encoding.Unicode.GetString(bys)
output.show(bstr)