同步和異步, 阻塞和非阻塞, Reactor和Proactor

http://www.artima.com/articles/io_design_patterns.html http://note.sdo.com/u/1434409594/n/lvRFW~kjR2N0LX0nE004_r http://www.cnblogs.com/xuxm2007/archive/2011/08/15/2139808.html, 圖示   我看了些blog, 很少有人能說清

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