md5 base64 guid crc16

md5字符串加密 生成guid唯一随机字符串 base64字符串加解密 文件crc16校验值 示例: Option Explicit Private Declare Function MD5String Lib "CommonFunc.dll" (ByVal s As String) As String Private Declare Function GuidString Lib "CommonFunc.dll" () As String Private Declare Function Base64Enc Lib "CommonFunc.dll" (ByVal s As String) A