所有类
AbstractCaptcha
AbstractCaptcha
AbstractGenerator
AbstractGenerator
CaptchaUtil
CaptchaUtil
CircleCaptcha
CircleCaptcha
CodeGenerator
CodeGenerator
GifCaptcha
GifCaptcha
ICaptcha
ICaptcha
LineCaptcha
LineCaptcha
MathGenerator
MathGenerator
RandomGenerator
RandomGenerator
ShearCaptcha
ShearCaptcha