最懒的做法:
声明:static const char searchBlockKey;
set:objc_setAssociatedObject(self, &searchBlockKey, block,OBJC_ASSOCIATION_RETAIN_NONATOMIC);
get:searchBlockblock = objc_getAssociatedObject(self, &searchBlockKey);
最懒的做法:
声明:static const char searchBlockKey;
set:objc_setAssociatedObject(self, &searchBlockKey, block,OBJC_ASSOCIATION_RETAIN_NONATOMIC);
get:searchBlockblock = objc_getAssociatedObject(self, &searchBlockKey);
本文标题:如何生成一个key
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