[O2O](O2O.md) [B2B](B2B.md) [C2C](C2C.md) [B2C](B2C.md) [C2B](C2B.md) [B2B2C](B2B2C.md) [P2P](P2P.md) [简介](%E7%AE%80%E4%BB%8B.md) [M2C](M2C.md) [常用的原型图](%E5%B8%B8%E7%94%A8%E7%9A%84%E5%8E%9F%E5%9E%8B%E5%9B%BE.md)