摘要：
有关介绍ios 中isa 的相关内容https://developer.apple.com/legacy/library/documentation/Cocoa/Conceptual/CocoaFundamentals/CocoaObjects/CocoaObjects.html#//apple_ref/doc/uid/TP40002974-CH4-SW31 阅读全文
posted @ 2014-02-24 17:33 0304 阅读(218) 评论(0) 推荐(0) 编辑