bytes() 转换为 string 再转换回来怎么才能一样呢 ？ 本人出50分在线等待解决问题！

[jaj114]

Dim hashedDataBytes as Byte()
Dim utf8 as New UTF8Encoding()
hashedDataBytes = md5Hasher.ComputeHash(encoder.GetBytes("123456"))
Dim utf8 As New UTF8Encoding
dim aa1 as string
aa1 = utf8.Default.GetString(hashedDataBytes)
hashedDataBytes1 = System.Text.Encoding.Default.GetBytes(aa1)

hashedDataBytes1 为什么和hashedDataBytes 不一样 代码应该怎样写 本人出50分解决问题！
语言：vb.net

[CMIC]

hashedDataBytes1 = System.Text.Encoding.Default.GetBytes(aa1)
--------------------------------------------------------------
hashedDataBytes1 = System.Text.Encoding.UTF8.GetBytes(aa1)

[rickjelly2004]

正确