//ACLOptions.Create | ACLOptions.Delete | ACLOptions.Create 相加
protected void Page_Load(object sender, EventArgs e)
{
SecureString s = new SecureString();
s.AppendChar('1');
s.AppendChar('2');
s.AppendChar('3');
Response.Write(Marshal.PtrToStringUni(Marshal.SecureStringToBSTR(s)));
TextBox1.SetValue(DateTime.Now);
}