目录前言·····························1第一章绪论···························21
1传统验证码识别方式·················································································21
2深度学习验证码识别概述·········································································31
3本文的组织结构·························································································4第二章卷积神经网络·······················52
1局部感受野·································································································52
2权值共享·····································································································52
3卷积·············································································································52
4池化···················································································