Objective-C实现二叉树遍历算法
下面是一个Objective-C实现二叉树前序、中序和后序遍历算法的示例代码:
#import <Foundation/Foundation.h>
@interface TreeNode : NSObject
@property NSNumber *value;
@property TreeNode *left
#import <Foundation/Foundation.h>
@interface TreeNode : NSObject
@property NSNumber *value;
@property TreeNode *left