[最简单的 tcp 连接](tcp/%E6%9C%80%E7%AE%80%E5%8D%95%E7%9A%84tcp%E8%BF%9E%E6%8E%A5.md) [面向对象,带有类型的tcp连接](tcp/%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1,%E5%B8%A6%E6%9C%89%E7%B1%BB%E5%9E%8B%E7%9A%84tcp%E8%BF%9E%E6%8E%A5.md) [极限封装的tcp](tcp/%E6%9E%81%E9%99%90%E5%B0%81%E8%A3%85%E7%9A%84tco.md)