出一本书 Cocoa Programing for OS X

[henryshen233]

https://www.amazon.cn/Cocoa-Programming-for-OS-X-The-Big-Nerd-Ranch-Guide-Hillegass-Aaron/dp/0134076958/ref=sr_1_1?ie=UTF8&qid=1481698600&sr=8-1&keywords=cocoa+programming+for+os+x 以上是购买链接，买的时候 297.7 元，现在 197.7 元出，只看了几页，很新。。