ios 泛型

#import <Foundation/Foundation.h>

@interface Stack<T> : NSObject

- (void)addObject:(T)object;

@end

#import "Stack.h"

@implementation Stack

- (void)addObject:(id)object

{

    NSLog(@"----%@--", object);

}

@end

//使用

Stack<NSString *> *stack = [[Stackalloc] init];

[stack addObject:@"abc"];