Objective-C中的方法重载？ [英] Method overloading in Objective-C?

问题描述

据我所知，Objective-C不支持方法重载。在Objective-C中可以替代什么？或者我应该总是使用不同的方法名称？

As far as my knowledge, Objective-C does not support method overloading. What can be the alternative for this in Objective-C? Or should I always use different method name?

推荐答案

正确，客观-C不支持方法重载，所以你必须使用不同的方法名称。

Correct, objective-C does not support method overloading, so you have to use different method names.

注意，方法名称包括方法签名关键字（参数
名称位于：之前） ），所以以下是两个不同的方法，即使它们都开始writeToFile：

Note, though, that the "method name" includes the method signature keywords (the parameter names that come before the ":"s), so the following are two different methods, even though they both begin "writeToFile":

-(void) writeToFile:(NSString *)path fromInt:(int)anInt;
-(void) writeToFile:(NSString *)path fromString:(NSString *)aString;

（两个方法的名称是writeToFile：fromInt：和writeToFile：fromString： ）。

(the names of the two methods are "writeToFile:fromInt:" and "writeToFile:fromString:").

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