Objective-C括号中的星号是什么意思? [英] Asterisk in parenthesis in Objective-C... What does it mean?

问题描述

Objective-C初学者一个简单的问题:在以下示例代码中，括号中的星号是什么意思?是指针吗?预先感谢.

Just a quick question from an Objective-C beginner: what does the asterisk in the parenthesis mean in the following sample code? Is it a pointer? Thanks in advance.

#import <Foundation/Foundation.h>

@interface Tire : NSObject
@end
@implementation Tire

- (NSString *) description
{
   return (@"I am a tire.");
}

@end

推荐答案

您是正确的. *表示说明返回指向NSString对象的指针.

You are correct. The * means that description returns a pointer to an NSString object.

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