请问objc.io上的这段递归代码如何执行？

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特别是第一句，有人给点拨一下么
完整的code https://github.com/objcio/issue-3-auto-layout-debugging
objc.io关于布局debug部分 http://www.objc.io/issue-3/advanced-auto-layout-toolbox.html

明白了，少看一段。。。删了吧

1 replies • 1970-01-01 08:00:00 +08:00

wtl

Jan 29, 2014

注意上面load方法里这句
MethodSwizzle(self, @selector(description), @selector(objcioOverride_description));

所以第一句实际上是在调用原来[self description]的实现