objective-c – 目标C：什么是[ClassName self];做？

我正在查看 CocoaHTTPServer project的源代码,更具体的是HTTPServer.m文件,我只是不明白这一行：

connectionClass = [httpconnection self];

这是做什么的(是否记录在任何地方)？它如何编译？应该不是

connectionClass = [httpconnection class];

解决方法

在这个上下文中,– (id)self是一个在NSObject上定义的方法.它返回接收器.对于一个类,它应该显然与调用 – (Class)类一样.

Class objects are thus full-fledged objects that can be dynamically typed,receive messages,and inherit methods from other classes. They’re special only in that they’re created by the compiler.