同步(Synchronous)、異步(Asynchronous)、阻塞(Block)、非阻塞(Non-block)

 不錯的文章

https://medium.com/hobo-engineer/ricky%E7%AD%86%E8%A8%98-%E7%90%86%E8%A7%A3-%E5%90%8C%E6%AD%A5-synchronous-%E7%95%B0%E6%AD%A5-asynchronous-%E9%98%BB%E5%A1%9E-block-%E9%9D%9E%E9%98%BB%E5%A1%9E-non-block-3c771f51b004