# 3 模型构建

- [3.1 模型创建步骤与 nn.Module](/3-mo-xing-gou-jian/3.1-mo-xing-chuang-jian-bu-zhou-yu-nn.module.md)
- [3.2 卷积层](/3-mo-xing-gou-jian/3.2-juan-ji-ceng.md)
- [3.3 池化层、线性层和激活函数层](/3-mo-xing-gou-jian/3.3-chi-hua-ceng-xian-xing-ceng-he-ji-huo-han-shu-ceng.md)