摘要：创建一个类需要先有一个类描述：#import <Foundation/Foundation.h>@interface User : NSObject { int uid; int age; NSString *name;}-(void)print;-(void)setId : (int) uid;-(void)setAge : (int) age;-(void)setName : (NSString *)name;-(NSString *)getName;@end#import <Foundation/Foundation.h>#import "User.h& 阅读全文