protected static string VCODE_SESSION = "vcode";
protected static Types VCODE_TYPE = Types.Number;
protected static int VCODE_LENGTH = 4;
protected static bool VCODE_IsEncrypt = true;
protected static bool VCODE_IsIgnore = false;
//产生图片 宽度:_WIDTH, 高度:_HEIGHT
private static readonly int _WIDTH = 130, _HEIGHT = 53;
//字体集
//private static readonly string[] _FONT_FAMIly = { "Arial", "Arial Black", "Arial Italic", "Courier New", "Courier New Bold Italic", "Courier New Italic", "Courier New Italic", "Courier New Bold Italic" };
private static readonly string[] _FONT_FAMIly = { "Arial", "Arial Black", "Arial Italic", "Courier New", "Courier New Bold Italic", "Courier New Italic", "Franklin Gothic Medium", "Franklin Gothic Medium Italic" };
//字体大小集
private static readonly int[] _FONT_SIZE = { 20, 25, 30 };